shell: Fix pixbuf reference leak saving screenshots
When saving a screenshot, the GdkPixbuf created would be left with a dangling reference after saving to disk (either leaked on errors, or via an extra reference on success). Always unref the pixbuf so it's either destroyed on error or there is a single reference fully transferred to the caller of the function. Closes: https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/5501 Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2449>
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@ -1061,6 +1061,7 @@ composite_to_stream_on_png_saved (GObject *pixbuf,
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else
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g_task_return_pointer (task, g_object_ref (pixbuf), g_object_unref);
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g_object_unref (pixbuf);
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g_object_unref (task);
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}
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