$ git clone -n https://src.fedoraproject.org/rpms/mailcommon.git /var/lib/mock/f41-build-1030819-18484/root/chroot_tmpdir/scmroot/mailcommon
Cloning into '/var/lib/mock/f41-build-1030819-18484/root/chroot_tmpdir/scmroot/mailcommon'...
$ git fetch origin c6ca2f98595b3a66cd5561b5838a8374ba3a8835:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mailcommon
 * [new ref]         c6ca2f98595b3a66cd5561b5838a8374ba3a8835 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c6ca2f9 24.05.1