$ git clone -n https://src.fedoraproject.org/rpms/tree-sitter.git /var/lib/mock/f42-build-3290028-41426/root/chroot_tmpdir/scmroot/tree-sitter
Cloning into '/var/lib/mock/f42-build-3290028-41426/root/chroot_tmpdir/scmroot/tree-sitter'...
$ git fetch origin fb9e77c123426e4add0208c4639b44d36ce5f5d7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tree-sitter
 * [new ref]         fb9e77c123426e4add0208c4639b44d36ce5f5d7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fb9e77c chain-build.sh: Request repo be regenerated to include fresh treesitter build.