Fix bug where zooming after a popup was closed would not work.  The issue was a signal not being cleaned up.
Fix bug where zooming after a popup was closed would not work.  The issue
was a signal not being cleaned up.

vrsource/vrs.ux.touch,vrsource/vrs.ux.touch,vrsource/vrs.ux.touch,vrsource/vrs.ux.touch