$ git clone -n https://src.fedoraproject.org/rpms/kf5-kdoctools.git /var/lib/mock/f39-build-1469034-33822/root/chroot_tmpdir/scmroot/kf5-kdoctools
Cloning into '/var/lib/mock/f39-build-1469034-33822/root/chroot_tmpdir/scmroot/kf5-kdoctools'...
$ git fetch origin 2442db7c54a77ab6a45d9c39583255fc6ca5c8cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kdoctools
 * [new ref]         2442db7c54a77ab6a45d9c39583255fc6ca5c8cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2442db7 5.111.0