[gnome-builder] libide-foundry: reset memfd position after creation

[Christian Hergert <chergert src gnome org>]

commit ac0118aeb201eb3f1d22d23e17e66c5a6d5b070e
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jul 11 20:50:55 2022 -0700

    libide-foundry: reset memfd position after creation

 src/libide/foundry/ide-foundry-global.c | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/libide/foundry/ide-foundry-global.c b/src/libide/foundry/ide-foundry-global.c
index cf0048bce..1051118ed 100644
--- a/src/libide/foundry/ide-foundry-global.c
+++ b/src/libide/foundry/ide-foundry-global.c
@@ -239,6 +239,9 @@ ide_foundry_bytes_to_memfd (GBytes     *bytes,
       return -1;
     }
 
+  /* Make sure we are set at the start */
+  lseek (fd, SEEK_SET, 0);
+
   return fd;
 }