Wrong height calculation

[Boris Maslennikov]

Hi
I found very strange issue. Looks like it's related to the snackbar height calculation.
https://codesandbox.io/s/v-snackbars-demo-forked-imf5y?file=/src/App.vue

How to replicate:
Add one more tag to v-combobox

Result
It displays three shackbars one above the other

I will venture to suggest that somewhere in the code this.$nextTick() is missing

[Aymeric]

The problem was due to the addition of several items at once. I've just published a fix for that.