fixed: selection and backspace are recently broken in CPTokenField

this bug was introduced by commit 26aab29
 26aab29 was meant to improve iOS experience but makes the tokenfield loose FR status prematurely

AppKit/CPTokenField.j

@@ -584,6 +584,12 @@ CPTokenFieldDeleteButtonType     = 1;
         // Snap to the token if it's only half visible due to mouse wheel scrolling.
         _shouldScrollTo = aToken;
     }
+
+    // this is a hack to compensate for a recent adoption in FR management as introduced by commit #26aab29
+    // this PR makes the tokenfield loose FR status prematurely, so we have to regain here in order to make deleteForward: and friends work
+    setTimeout(function(){
+        [[self window] makeFirstResponder:self];
+    }, 50);
 }
 
 // ===========
@@ -964,8 +970,8 @@ CPTokenFieldDeleteButtonType     = 1;
                 [self _selectToken:tokenView byExtendingSelection:NO];
             }
         }
-        else
-            [self _removeSelectedTokens:nil];
+        // we have to remove unconditionally because the backspace is not propagated anymore starting from commit #26aab29
+        [self _removeSelectedTokens:nil];
     }
     else
     {