$ git clone -n https://src.fedoraproject.org/rpms/kf5-pimcommon.git /var/lib/mock/f39-build-1919638-42942/root/chroot_tmpdir/scmroot/kf5-pimcommon
Cloning into '/var/lib/mock/f39-build-1919638-42942/root/chroot_tmpdir/scmroot/kf5-pimcommon'...
$ git fetch origin 13a108e5f8b82cc02f728d5d0552aa7c2385e302:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-pimcommon
 * [new ref]         13a108e5f8b82cc02f728d5d0552aa7c2385e302 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13a108e 23.08.3