$ git clone -n https://src.fedoraproject.org/rpms/rust-tree-sitter-r.git /var/lib/mock/f45-build-45731-825/root/chroot_tmpdir/scmroot/rust-tree-sitter-r
Cloning into '/var/lib/mock/f45-build-45731-825/root/chroot_tmpdir/scmroot/rust-tree-sitter-r'...
$ git fetch origin d27b52c307dab686b182817d0a7ebe76ad601ee8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tree-sitter-r
 * [new ref]         d27b52c307dab686b182817d0a7ebe76ad601ee8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d27b52c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild