$ git clone -n https://src.fedoraproject.org/rpms/python-pytest-regressions.git /var/lib/mock/f42-build-side-1-3589241-46955/root/chroot_tmpdir/scmroot/python-pytest-regressions
Cloning into '/var/lib/mock/f42-build-side-1-3589241-46955/root/chroot_tmpdir/scmroot/python-pytest-regressions'...
$ git fetch origin 8816f7a73a192c474268564a3b52faae8c1b40b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pytest-regressions
 * [new ref]         8816f7a73a192c474268564a3b52faae8c1b40b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8816f7a Version 2.8.1