$ git clone -n https://src.fedoraproject.org/rpms/emacs.git /var/lib/mock/f41-build-852534-166391/root/chroot_tmpdir/scmroot/emacs
Cloning into '/var/lib/mock/f41-build-852534-166391/root/chroot_tmpdir/scmroot/emacs'...
$ git fetch origin cf88b767de5d9b5151130d340442b0b108497af6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs
 * [new ref]         cf88b767de5d9b5151130d340442b0b108497af6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cf88b76 Rebuild against tree-sitter-0.23.0-2.fc41.