qml: fix confusion when dialogs not on top of activeDialog stack are closed

electrum/gui/qml/components/controls/ElDialog.qml

@@ -16,7 +16,12 @@ Dialog {
         if (opened) {
             app.activeDialogs.push(abstractdialog)
         } else {
-            app.activeDialogs.pop()
+            if (app.activeDialogs.indexOf(abstractdialog) < 0) {
+                console.log('dialog should exist in activeDialogs!')
+                app.activeDialogs.pop()
+                return
+            }
+            app.activeDialogs.splice(app.activeDialogs.indexOf(abstractdialog),1)
         }
     }