[Bug Report] Blur event for v-combobox adds the current filter text as a new item

Versions and Environment

Vuetify: 1.5.4 Vue: 2.5.2 Browsers: Chrome 72.0.3626.119 OS: Windows 7

Steps to reproduce

1. Click in Location field
2. Type B
3. Click the B3 item

Expected Behavior

Expect the B3 item to be added without anything else.

Actual Behavior

B3 item gets added along with a new item B from the typed filter text.

Reproduction Link

https://codepen.io/anon/pen/GemKrX

Other comments

This is specifically a problem when menu-props="{ closeOnContentClick: true }". Some UX rationale comes from issue !5926 but I don’t think this UX rationale applies when closeOnContentClick is true

[thomas-romuald]

@johnleider I’ve just installed the latest version of vuetify 2.2.17. But I still have the issue as described here. On the documentation the bug is reproductible as well (https://vuetifyjs.com/en/components/combobox -> examples -> multiple combobox).

[all4manu]

The current version 2.1.2 also seems to be affected. You can reproduce it by going to the vuetify documentation (https://vuetifyjs.com/en/components/combobox -> examples -> multiple combobox).

1. Click into one of the three fields
2. Enter letter d into the field
3. Hit the down cursor to select Design
4. Hit enter key

=> Design and d will be added to the selected items.