Widen target branch select box when editing MR
The names of the release branches in our project are of the following form: `release-branches/OUR_PRODUCT_X.Y`
When creating a merge request using the _Create merge request_ button on the _Merge Requests_ page, the target branch is already populated with the project's default branch and can also no longer be changed. The problem is, that the _Target branch_ select box is not wide enough to show the entire branch name, it gets truncated somewhere between _UR_ and _PROD_. As there's also no tooltip to show the complete name of the target branch, there's no way to know which specific target branch is selected on this specific page.
My suggestion is to either
1. Widen the select box to show longer branch names
2. Provide a tooltip with the complete branch name at least when it is truncated
issue