$ git clone -n https://src.fedoraproject.org/rpms/python-hatch-vcs.git /var/lib/mock/f40-build-2222589-52708/root/chroot_tmpdir/scmroot/python-hatch-vcs
Cloning into '/var/lib/mock/f40-build-2222589-52708/root/chroot_tmpdir/scmroot/python-hatch-vcs'...
$ git fetch origin 00ecbaf999fe8f5182d0f3bf36fd445c58bafa35:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-hatch-vcs
 * [new ref]         00ecbaf999fe8f5182d0f3bf36fd445c58bafa35 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00ecbaf Update to 0.4.0 (close RHBZ#2248106)