Support for git worktree

What steps will reproduce the problem?

1. Checkout a branch via git worktree
2. Open worktree folder in explorer
3. Try to performn git operations via tortoisegit

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

I would expect to perform git commit, revert, log, etc. but instead get the following dialog.

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TortoiseGit
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Could not get config.
libgit reports:
Not a git repository: C:/Users/Ramon/src/particular/NServiceBus/.git/worktrees/NServiceBus-5.2.9
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OK   
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What version of TortoiseGit and Git are you using? On what operating system?

TortoiseGit 1.8.15.0 (C:\Program Files\TortoiseGit\bin) git version 2.6.0.windows.1 (C:\Program Files\Git\bin; C:\Program Files\Git\mingw64; C:\ProgramData\Git\config) Windows 10

Please provide any additional information below.