[Feature request] Fill "New Branch Name" field when remote branch is already tracked

[julaudo]

Use case:

• Remote branch origin/my_feature
• Local checkout as "feature" and push some commits
• Someone else add commits so I'm not up-to-date
• git fetch
• Double click on "origin/my_feature" opens:

In this case this would be nice to fill "New branch name" with "my_feature" (I will also check "Overwrite existing branch")
Or at list add a listbox to quickly choose the branch