make sure we save field in all blur cases

https://anki.tenderapp.com/discussions/ankidesktop/32268-changes-in-editcurrent-and-addcards-not-taking-effect-when-using-mouse-rather-than-hotkey

web/editor.js

@@ -207,15 +207,17 @@ function caretToEnd() {
 }
 
 function onBlur() {
-    if (document.activeElement === currentField) {
-        // anki window defocused; current field unchanged
-        return;
-    }
     if (currentField) {
         saveField("blur");
-        currentField = null;
-    }
         clearChangeTimer();
+    }
+
+    if (document.activeElement === currentField) {
+        // other widget or window focused; current field unchanged
+        return;
+    }
+
+    currentField = null;
     disableButtons();
 }