$ git clone -n https://src.fedoraproject.org/rpms/libomp.git /var/lib/mock/f39-build-2133972-50802/root/chroot_tmpdir/scmroot/libomp
Cloning into '/var/lib/mock/f39-build-2133972-50802/root/chroot_tmpdir/scmroot/libomp'...
$ git fetch origin 070a9c18a9cd77141f020a4deb98de90c1b11095:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libomp
 * [new ref]         070a9c18a9cd77141f020a4deb98de90c1b11095 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 070a9c1 Update to LLVM 17.0.6