$ git clone -n https://src.fedoraproject.org/rpms/python-rmtest.git /var/lib/mock/f39-build-1425921-31585/root/chroot_tmpdir/scmroot/python-rmtest
Cloning into '/var/lib/mock/f39-build-1425921-31585/root/chroot_tmpdir/scmroot/python-rmtest'...
$ git fetch origin 8d5378655ab0384995574b25be8e3f24a59c09c8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-rmtest
 * [new ref]         8d5378655ab0384995574b25be8e3f24a59c09c8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d53786 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild