With Detached Head, Push Dialog has Local Branch filled with HEAD or Commit Hash

What steps will reproduce the problem?

1. Commit from Detached Head
2. From Commit "Git Command Progress" Window press Push...
3. Local Branch is empty

OR

1. Checkout Detached Head
2. From Shell Menu select "Push..."
3. Local Branch is empty

What is the expected output? What do you see instead?

Local Branch is filled with HEAD or Commit Hash (As it is, when you Shift Right-Click in Log)

What version of TortoiseGit and Git are you using? On what operating system?

TortoiseGit 2.6.0.0

git version 2.8.1.windows.1

Please provide any additional information below.

See also #3198 (closed)