$ git clone -n https://src.fedoraproject.org/rpms/kf5-kholidays.git /var/lib/mock/f40-build-786873-134632/root/chroot_tmpdir/scmroot/kf5-kholidays
Cloning into '/var/lib/mock/f40-build-786873-134632/root/chroot_tmpdir/scmroot/kf5-kholidays'...
$ git fetch origin 6da3a3ee3db16b8c048025d30ad7867340c7015b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kholidays
 * [new ref]         6da3a3ee3db16b8c048025d30ad7867340c7015b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6da3a3e 5.115.0