$ git clone -n https://src.fedoraproject.org/rpms/kmix.git /var/lib/mock/f39-build-1689040-41121/root/chroot_tmpdir/scmroot/kmix
Cloning into '/var/lib/mock/f39-build-1689040-41121/root/chroot_tmpdir/scmroot/kmix'...
$ git fetch origin 93cac3b0f2a06c38fc6f965f0a328edddffccfd5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmix
 * [new ref]         93cac3b0f2a06c38fc6f965f0a328edddffccfd5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93cac3b 23.08.3