$ git clone -n https://src.fedoraproject.org/rpms/kf5-kmailtransport.git /var/lib/mock/f39-build-1985011-43349/root/chroot_tmpdir/scmroot/kf5-kmailtransport
Cloning into '/var/lib/mock/f39-build-1985011-43349/root/chroot_tmpdir/scmroot/kf5-kmailtransport'...
$ git fetch origin eea8cf48ca94ee979da696c652a91eb7391e0d47:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kmailtransport
 * [new ref]         eea8cf48ca94ee979da696c652a91eb7391e0d47 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eea8cf4 23.08.3