Support for default branch names other than `master` about braid HOT 3 CLOSED

/home/user/chadburn > braid add 'https://github.com/PremoWeb/chadburn.git' chadburn -v
Braid: Executing `git --version` in /home/user/chadburn
Braid: Executing `git rev-parse --is-inside-work-tree` in /home/user/chadburn
Braid: Executing `git rev-parse --show-prefix` in /home/user/chadburn
Braid: Executing `git status` in /home/user/chadburn
Braid: Executing `git rev-parse HEAD` in /home/user/chadburn
Braid: Executing `git add .braids.json` in /home/user/chadburn
Braid: Adding mirror of 'https://github.com/PremoWeb/chadburn.git'.
Braid: Executing `git --version` in /home/user/chadburn
Braid: Executing `git rev-parse --is-inside-work-tree` in /home/user/chadburn
Braid: Executing `git rev-parse --show-prefix` in /home/user/chadburn
Braid: Executing `git config remote.master/braid/chadburn.url` in /home/user/chadburn
Braid: Setup: Mirror 'chadburn' already has a remote. Replacing it (force)
Braid: Executing `git remote rm master/braid/chadburn` in /home/user/chadburn
Braid: Setup: Creating remote for 'chadburn'.
Braid: Executing `git remote add master/braid/chadburn /Users/unlimint/.braid/cache/https___github.com_PremoWeb_chadburn.git` in /home/user/chadburn
Braid: Executing `git config remote.master/braid/chadburn.url` in /home/user/chadburn
Braid: Executing `git fetch` in /home/user/.braid/cache/https___github.com_PremoWeb_chadburn.git
Braid: Executing `git fetch -n master/braid/chadburn` in /home/user/chadburn
Braid: Executing `git rev-parse master/braid/chadburn/master^{commit}` in /home/user/chadburn
Braid: Resetting to '2d5945f'.
Braid: Executing `git reset --hard 2d5945f4109faee2e82dcf2ec3e802b6dd15ca53` in /home/user/chadburn
Braid: Error: unknown revision: master/braid/chadburn/master^{commit}