$ git clone -n https://src.fedoraproject.org/rpms/python3-cangjie.git /var/lib/mock/f39-build-1549512-36905/root/chroot_tmpdir/scmroot/python3-cangjie
Cloning into '/var/lib/mock/f39-build-1549512-36905/root/chroot_tmpdir/scmroot/python3-cangjie'...
$ git fetch origin cddf6d157fed8c720ed0e2593140396db034ba2e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python3-cangjie
 * [new ref]         cddf6d157fed8c720ed0e2593140396db034ba2e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cddf6d1 Use Cython compat package