[gupnp] ServiceProxy: Fix error propagation in sync call

[Jens Georg <jensgeorg src gnome org>]

commit a23561d3e17f0d44aeda79495083220e95951aa8
Author: Jens Georg <mail jensge org>
Date:   Sun Jan 23 16:11:42 2022 +0100

    ServiceProxy: Fix error propagation in sync call

 libgupnp/gupnp-service-proxy.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
---
diff --git a/libgupnp/gupnp-service-proxy.c b/libgupnp/gupnp-service-proxy.c
index a022619..031ab9e 100644
--- a/libgupnp/gupnp-service-proxy.c
+++ b/libgupnp/gupnp-service-proxy.c
@@ -1599,8 +1599,6 @@ gupnp_service_proxy_call_action (GUPnPServiceProxy       *proxy,
                                                        &internal_error);
 
         if (internal_error != NULL) {
-                g_propagate_error (error, internal_error);
-
                 goto out;
         }
 
@@ -1623,6 +1621,7 @@ gupnp_service_proxy_call_action (GUPnPServiceProxy       *proxy,
 
 out:
         if (internal_error != NULL) {
+                action->error = g_error_copy (internal_error);
                 g_propagate_error (error, internal_error);
 
                 return NULL;