$ git clone -n https://src.fedoraproject.org/rpms/osbuild-composer.git /var/lib/mock/f39-build-2091828-50235/root/chroot_tmpdir/scmroot/osbuild-composer
Cloning into '/var/lib/mock/f39-build-2091828-50235/root/chroot_tmpdir/scmroot/osbuild-composer'...
$ git fetch origin eb0dd1a1b3f4cfbbd6dee6d617a9e22d085a2109:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osbuild-composer
 * [new ref]         eb0dd1a1b3f4cfbbd6dee6d617a9e22d085a2109 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb0dd1a [packit] 96 upstream release