$ git clone -n https://src.fedoraproject.org/rpms/kf6-kcrash.git /var/lib/mock/f41-build-860968-169299/root/chroot_tmpdir/scmroot/kf6-kcrash
Cloning into '/var/lib/mock/f41-build-860968-169299/root/chroot_tmpdir/scmroot/kf6-kcrash'...
$ git fetch origin 2c19398c85800c9b9dbc16750d379ad82dbb16f9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kcrash
 * [new ref]         2c19398c85800c9b9dbc16750d379ad82dbb16f9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2c19398 6.8.0