$ git clone -n https://src.fedoraproject.org/rpms/emacs.git /var/lib/mock/f43-build-side-110360-58911252-6569219/root/chroot_tmpdir/scmroot/emacs
Cloning into '/var/lib/mock/f43-build-side-110360-58911252-6569219/root/chroot_tmpdir/scmroot/emacs'...
$ git fetch origin 7b67394177313d608555d8317056764e351bc999:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs
 * [new ref]         7b67394177313d608555d8317056764e351bc999 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7b67394 Rebuild against tree-sitter-0.25.3-1.fc43