$ git clone -n https://src.fedoraproject.org/rpms/osbuild-composer.git /var/lib/mock/f40-build-793077-138784/root/chroot_tmpdir/scmroot/osbuild-composer
Cloning into '/var/lib/mock/f40-build-793077-138784/root/chroot_tmpdir/scmroot/osbuild-composer'...
$ git fetch origin 45bf3834ffbe067ce9b3ac811835dc3f280e3529:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osbuild-composer
 * [new ref]         45bf3834ffbe067ce9b3ac811835dc3f280e3529 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45bf383 [packit] 101 upstream release