fix(tooltip popover): illegal invocation errors when tooltip inside v-if elements (#1057)
fix(tooltip popover): illegal invocation errors when tooltip inside v-if elements (#1057)

* fix(ttoltip popover): prevnt llegal invocation errors when tooltip inside `v-if`'ed elements

Prevents illegal invocation errors when tooltip inside `v-if`'ed elements.

Fixes issue  #1032

* Update tooltip.js

tmorehouse/bootstrap-vue,bootstrap-vue/bootstrap-vue,sschadwick/bootstrap-vue,sschadwick/bootstrap-vue,sschadwick/bootstrap-vue,bootstrap-vue/bootstrap-vue,tmorehouse/bootstrap-vue