tooltip's tt_content & "empty" value

[nuriahmetov]

Hi there!
Sorry for my English =). I'm using last github versions of Angular & UI-Bootstrap (1.2.4 & 0.8.snapshot). Maybe some bug there...
controller:

$scope.tip = 'Hi there!';

template:

<input type="text" ng-model="tip" tooltip="{{ tip }}">

Mouseenter will show a proper tooltip: "Hi there!", but if you erase input's value and mouseenter again, you'll see "Hi there!". Is it right behaviour? I think it shouldn't be shown, isn't?

Something like this: (tooltip.js, about line 249)

attrs.$observe( type, function ( val ) {
   scope.tt_content = val;
   if ( !val && scope.tt_isOpen ) {
      hide();
   }
});

[bekos]

@nuriahmetov Thanks for the report and the proposed solution. I can reproduce this on our demo page.
What about a nice PR with an accompanying test?

[nuriahmetov]

@bekos you did it! Thanks!

[bekos]

@nuriahmetov Thank you. Fix landed on master.