$ git clone -n https://src.fedoraproject.org/rpms/emacs.git /var/lib/mock/f41-build-850656-165528/root/chroot_tmpdir/scmroot/emacs
Cloning into '/var/lib/mock/f41-build-850656-165528/root/chroot_tmpdir/scmroot/emacs'...
$ git fetch origin 1d7139dcc20dfe988689b976592a29f161a9d1a8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs
 * [new ref]         1d7139dcc20dfe988689b976592a29f161a9d1a8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d7139d Relax libtree-sitter requirement.