$ git clone -n https://src.fedoraproject.org/rpms/kf5-kmailtransport.git /var/lib/mock/f39-test-2571213-62244/root/chroot_tmpdir/scmroot/kf5-kmailtransport
Cloning into '/var/lib/mock/f39-test-2571213-62244/root/chroot_tmpdir/scmroot/kf5-kmailtransport'...
$ git fetch origin f5b327e20c4150634fcb1d24ab4291383da119d4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kmailtransport
 * [new ref]         f5b327e20c4150634fcb1d24ab4291383da119d4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5b327e 23.08.5