[dconf-editor] Fix previous commit.

[Arnaud Bonatti <arnaudb src gnome org>]

commit 1449a288b179a077819b202d0ca4733e79ae3f9b
Author: Arnaud Bonatti <arnaud bonatti gmail com>
Date:   Mon Dec 11 08:25:00 2017 +0100

    Fix previous commit.

 editor/key-list-box-row.vala |    2 ++
 editor/registry-search.vala  |   11 +++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/editor/key-list-box-row.vala b/editor/key-list-box-row.vala
index 9420b48..7d56aaa 100644
--- a/editor/key-list-box-row.vala
+++ b/editor/key-list-box-row.vala
@@ -70,7 +70,9 @@ private abstract class ClickableListBoxRow : EventBox
     public signal void on_row_clicked ();
     public signal void on_open_parent ();
     public signal void on_delete_call ();
+
     public signal void on_popover_disappear ();
+    public ulong on_popover_disappear_handler = 0;
 
     public abstract string get_text ();
 
diff --git a/editor/registry-search.vala b/editor/registry-search.vala
index b2404a4..cb1971a 100644
--- a/editor/registry-search.vala
+++ b/editor/registry-search.vala
@@ -218,7 +218,8 @@ class RegistrySearch : Grid, PathElement, BrowsableView
             }
 
             row.show_right_click_popover (modifications_handler, event_x);
-            row.on_popover_disappear.connect (window.select_search_entry);
+            if (row.on_popover_disappear_handler == 0)
+                row.on_popover_disappear_handler = row.on_popover_disappear.connect 
(window.select_search_entry);
             rows_possibly_with_popover.append (row);
         }
 
@@ -279,6 +280,11 @@ class RegistrySearch : Grid, PathElement, BrowsableView
         ClickableListBoxRow? row = (ClickableListBoxRow?) rows_possibly_with_popover.get_item (0);
         while (row != null)
         {
+            if (((!) row).on_popover_disappear_handler != 0)
+            {
+                disconnect (((!) row).on_popover_disappear_handler);
+                ((!) row).on_popover_disappear_handler = 0;
+            }
             ((!) row).destroy_popover ();
             position++;
             row = (ClickableListBoxRow?) rows_possibly_with_popover.get_item (position);
@@ -310,7 +316,8 @@ class RegistrySearch : Grid, PathElement, BrowsableView
 
         ClickableListBoxRow row = (ClickableListBoxRow) ((!) selected_row).get_child ();
         row.show_right_click_popover (modifications_handler);
-        row.on_popover_disappear.connect (window.select_search_entry);
+        if (row.on_popover_disappear_handler == 0)
+            row.on_popover_disappear_handler = row.on_popover_disappear.connect (window.select_search_entry);
         rows_possibly_with_popover.append (row);
         return true;
     }