[dconf-editor] Manually clear() VariantDict.

[Arnaud B. <arnaudb src gnome org>]

commit b68f08bf2bb1a7ec455cf6e8c2d94ef0448091e9
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Tue Jul 31 18:49:43 2018 +0200

    Manually clear() VariantDict.

 editor/modifications-handler.vala  | 1 +
 editor/modifications-revealer.vala | 3 +++
 editor/registry-info.vala          | 5 +++++
 editor/registry-list.vala          | 6 ++++++
 4 files changed, 15 insertions(+)
---
diff --git a/editor/modifications-handler.vala b/editor/modifications-handler.vala
index fcc0588..fe9a6bf 100644
--- a/editor/modifications-handler.vala
+++ b/editor/modifications-handler.vala
@@ -160,6 +160,7 @@ class ModificationsHandler : Object
         Variant key_value;
         if (!properties.lookup ("key-value", "v", out key_value))
             assert_not_reached ();
+        properties.clear ();
         return key_value;
     }
 
diff --git a/editor/modifications-revealer.vala b/editor/modifications-revealer.vala
index 30ec296..086b209 100644
--- a/editor/modifications-revealer.vala
+++ b/editor/modifications-revealer.vala
@@ -118,6 +118,7 @@ class ModificationsRevealer : Revealer
                     assert_not_reached ();
                 if (!properties.lookup ("schema-id",    "s",    out schema_id))
                     assert_not_reached ();
+                properties.clear ();
 
                 if (!is_key_default)
                     modifications_handler.add_delayed_setting (full_name, null, true, schema_id);
@@ -201,6 +202,8 @@ class ModificationsRevealer : Revealer
         if (!properties.lookup ("key-value",        "v",    out key_value))
             assert_not_reached ();
 
+        properties.clear ();
+
         DelayedSettingView view = new DelayedSettingView (((SimpleSettingObject) object).name,
                                                           full_name,
                                                           context,
diff --git a/editor/registry-info.vala b/editor/registry-info.vala
index 4d2d2c4..89b695d 100644
--- a/editor/registry-info.vala
+++ b/editor/registry-info.vala
@@ -272,6 +272,8 @@ class RegistryInfo : Grid, BrowsableView
         }
         one_choice_warning_revealer.set_reveal_child (is_key_editor_child_single);
 
+        properties.clear ();
+
         if (has_schema && error_hard_conflicting_key)
             return;
 
@@ -325,6 +327,7 @@ class RegistryInfo : Grid, BrowsableView
                         Variant key_value;
                         if (!local_properties.lookup ("key-value", "v", out key_value))
                             assert_not_reached ();
+                        local_properties.clear ();
                         if (custom_value_switch.get_active ())
                         {
                             model.set_key_to_default (full_name, context);
@@ -345,6 +348,7 @@ class RegistryInfo : Grid, BrowsableView
                     bool is_key_default;
                     if (!local_properties.lookup ("is-default", "b", out is_key_default))
                         assert_not_reached ();
+                    local_properties.clear ();
                     custom_value_switch.set_active (is_key_default);
                     SignalHandler.unblock (custom_value_switch, switch_active_handler);
                 });
@@ -368,6 +372,7 @@ class RegistryInfo : Grid, BrowsableView
                 Variant key_value;
                 if (!local_properties.lookup ("key-value", "v", out key_value))
                     assert_not_reached ();
+                local_properties.clear ();
                 key_editor_child.reload (key_value);
                 //if (type_code == "<flags>")                      let's try to live without this...
                 //    key.planned_value = key.value;
diff --git a/editor/registry-list.vala b/editor/registry-list.vala
index 0239ca1..17f66c5 100644
--- a/editor/registry-list.vala
+++ b/editor/registry-list.vala
@@ -355,6 +355,8 @@ private abstract class RegistryList : Grid, BrowsableView
                                          search_mode_non_local_result);
             }
 
+            properties.clear ();
+
             KeyListBoxRow key_row = (KeyListBoxRow) row;
             key_row.small_keys_list_rows = _small_keys_list_rows;
 
@@ -481,6 +483,7 @@ private abstract class RegistryList : Grid, BrowsableView
             assert_not_reached ();
         if (!properties.lookup ("hard-conflict", "b", out error_hard_conflicting_key))
             assert_not_reached ();
+        properties.clear ();
 
         update_gsettings_row ((!) row,
                               type_code,
@@ -625,6 +628,7 @@ private abstract class RegistryList : Grid, BrowsableView
         {
             popover.new_gaction ("detail", "ui.open-object(" + variant_ss.print (false) + ")");
             popover.new_gaction ("copy", "app.copy(" + get_copy_text_variant (row).print (false) + ")");
+            properties.clear ();
             return true; // anything else is value-related, so we are done
         }
 
@@ -706,6 +710,7 @@ private abstract class RegistryList : Grid, BrowsableView
             popover.new_section ();
             popover.new_gaction ("default1", "bro.set-to-default(" + variant_ss.print (false) + ")");
         }
+        properties.clear ();
         return true;
     }
 
@@ -745,6 +750,7 @@ private abstract class RegistryList : Grid, BrowsableView
             Variant key_value;
             if (!properties.lookup ("key-value", "v", out key_value))
                 assert_not_reached ();
+            properties.clear ();
             GLib.Action action = popover.create_buttons_list (true, delayed_apply_menu, planned_change, 
row.type_string, null,
                                                               planned_change ? planned_value : key_value);