ngClass with ngAnimate breaks existing css transitions

[thetrevdev]

This shows that by having ng-class on an element that when it is toggled it breaks existing css transitions.

http://plnkr.co/edit/XALhTdtNrn0kpsnQNyEC

[thetrevdev]

"The problem is, ngAnimate in its animateSetup disables the transition with blockTransitions (as a workaround for a bug in Chrome/FF as it claims)."

Related to #6675

A temporary work around is to use the important on the transition property.

transition-property: all!important;