$ git clone -n https://src.fedoraproject.org/rpms/falkon.git /var/lib/mock/f42-build-864308-172280/root/chroot_tmpdir/scmroot/falkon
Cloning into '/var/lib/mock/f42-build-864308-172280/root/chroot_tmpdir/scmroot/falkon'...
$ git fetch origin b8ae637397a3e0dc8755a4fee0a001bdc3813efa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/falkon
 * [new ref]         b8ae637397a3e0dc8755a4fee0a001bdc3813efa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b8ae637 24.12.0