Steps to reproduce:
- clone a project from git repository on the remote host
- open just cloned full remote project
- create a new branch e.g. Release
- switch to Release branch
- make some changes in the project and save the changed files
- commit the changes
- push changes and confirm new branch creation in the repository
- make some changes in another source file
- commit the changes (to Release branch)
- call "Remote Git -> Remote -> Show Outgoing" to view changes which are going to be pushed to the repository
Result: "Show Outgoing" window doe not show changes and contains grayed text:
Please push branch "Release" first and set its remote tracking.

In fact the following command was executed:
git --no-pager branch -v -v -a

whereas the following command would give correct result:

-bash-4.1$ git --no-pager log --raw --pretty=raw  Release^..Release -10
commit 855f1e5045cbbdb9893d4a308a0bbe9aecfc542a
tree 96017cafeab8240eaf485d783cd9e08a7802691e
parent 0ed55584b6492d6ed77e7faf915f61afece3df04
author user <user@git.com> 1449678306 +0300
committer hudson <hudson@spb-ladoga.ru.oracle.com> 1449678306 +0300

    Made critical changes for RC1

:100644 100644 60e15e1... be089f7... M  system.cc