Cherry-Picking UI Regressions (8.17.0)

Summary

The search in the 'Switch Branch' dialog for 'Pick into branch' does not work, and when creating a cherry-pick merge request it does not automatically select the temporary cherry-pick branch as the source.

Steps to reproduce

Simply attempt to cherry-pick any commit or merge request into any branch.

What is the current bug behavior?

1. When selecting the target branch from the 'Switch Branch' dialog, typing in the search box causes the list to flicker, but not to actually filter.

2. Once a target branch is selected, the cherry pick branch and the UI moves to the 'New Merge Request' page, but it does not auto-select the cherry-pick branch as the source. This must be done manually to proceed.

What is the expected correct behavior?

1. Typing in the search box should filter the list presented based on the user's input.
2. The temporary cherry-pick branch should be automatically selected as the source branch for a new merge request.