**BUG**
Steps to reproduce bug:
1. place a resistor
2. highlight it
3. click on "package" input field in "custom attributes" => component browser comes up
4. find and select AXIAL-0.4 and click "Update Package" button
Results:
A pop-up informs the it has been added to favorites.
If you repeat all steps then a dialog comes up: "Do you confirm this? Remove favorite".
Expected results:
The "Update Package" button should update the package field only and not add/remove favorite.
Browser:
Chromium 55.0.2883.75 on RedHat EL 6.
