Quasar: QSelect: using 'multiple' together with 'option-label', 'option-value', 'map-options' and 'emit-value' results in unwanted behavior

[tobiasfuhlroth]

Describe the bug
Using 'multiple' together with 'option-label', 'option-value', 'map-options' and 'emit-value' results in unwanted behavior. When configuring the QSelect this way it is possible to select the same option multiple times.

Codepen/jsFiddle/Codesandbox (required)
https://codepen.io/tofupen/pen/yLyGOLL?editors=1010

To Reproduce
Steps to reproduce the behavior:

1. Go to https://codepen.io/tofupen/pen/yLyGOLL?editors=1010
2. Click on the QSelect to open the options
3. Click on the option 'Google'
4. Click on the option 'Google' again
5. Error: the option 'Google' gets selected twice

Expected behavior
After the second click the option 'Google' should be deselected and removed from QSelect

Screenshots

[rstoenescu]

Hi,

Thanks for reporting!
Fix will be available this week in v1.8.0.