$ git clone -n https://src.fedoraproject.org/rpms/llvm-bolt.git /var/lib/mock/f38-build-side-42-init-devel-603538-26220/root/chroot_tmpdir/scmroot/llvm-bolt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-603538-26220/root/chroot_tmpdir/scmroot/llvm-bolt'...
$ git fetch origin 7707a8aa7de58ba38d74e16d000194b301500180:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/llvm-bolt
 * [new ref]         7707a8aa7de58ba38d74e16d000194b301500180 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7707a8a Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild