Bootstrap dropdown not closed if class is assigned

[j3ca]

Version

2.6.8

Reproduction link

https://jsfiddle.net/j3ca/yjzh12kg/6/

Steps to reproduce

• Create a simple bootstrap dropdown
• On the .dropdown element include v-bind:class{'some-class': condition}
• Add a @click event to .dropdown-item, and then set condition to true
• Dropdown breaks and it won't close anymore (it does add the class "some-class" but it won't close)

What is expected?

Dropdown closes when a class is added to .dropdown element

What is actually happening?

Since the version 2.6.0 the dropdown gets "stuck" where the class "show" is removed from the .dropdown element, but not from the .dropdown-menu

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This is with the version 2.6.8: https://jsfiddle.net/j3ca/yjzh12kg/6/

If you remove that version and use any <2.6.0 (e.g. https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.22/vue.js) it will work.

[posva]

Sorry but this is too much for a repro, it shouldn't contain any bootstrap code yet you have jquery, bootstrap and popper. Come back if you manage to reproduce the problem without those dependencies

It may be linked to #9340 or #9615