$ git clone -n https://src.fedoraproject.org/rpms/kmail.git /var/lib/mock/f42-build-864136-172187/root/chroot_tmpdir/scmroot/kmail
Cloning into '/var/lib/mock/f42-build-864136-172187/root/chroot_tmpdir/scmroot/kmail'...
$ git fetch origin 0149e2b4d5d057410be8c1072bdb66468b549d08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmail
 * [new ref]         0149e2b4d5d057410be8c1072bdb66468b549d08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0149e2b 24.12.0