$ git clone -n https://src.fedoraproject.org/rpms/python-pluggy.git /var/lib/mock/f39-build-1553986-37021/root/chroot_tmpdir/scmroot/python-pluggy
Cloning into '/var/lib/mock/f39-build-1553986-37021/root/chroot_tmpdir/scmroot/python-pluggy'...
$ git fetch origin f6d925741bad15c963056a741a6c756fe8cdca3b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pluggy
 * [new ref]         f6d925741bad15c963056a741a6c756fe8cdca3b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f6d9257 Update to 1.2.0.