$ git clone -n https://src.fedoraproject.org/rpms/emacs-pkg-info.git /var/lib/mock/f39-build-1532485-36224/root/chroot_tmpdir/scmroot/emacs-pkg-info
Cloning into '/var/lib/mock/f39-build-1532485-36224/root/chroot_tmpdir/scmroot/emacs-pkg-info'...
$ git fetch origin 200c706c499bcd552eba6fbff704a813b38d7d4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/emacs-pkg-info
 * [new ref]         200c706c499bcd552eba6fbff704a813b38d7d4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 200c706 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild