$ git clone -n https://src.fedoraproject.org/rpms/kf5-ksmtp.git /var/lib/mock/f39-build-1756489-41479/root/chroot_tmpdir/scmroot/kf5-ksmtp
Cloning into '/var/lib/mock/f39-build-1756489-41479/root/chroot_tmpdir/scmroot/kf5-ksmtp'...
$ git fetch origin 0973e9f2c1c845ef77c6fafad9f88add67f483e4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-ksmtp
 * [new ref]         0973e9f2c1c845ef77c6fafad9f88add67f483e4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0973e9f 23.08.3