$ git clone -n https://src.fedoraproject.org/rpms/osbuild-composer.git /var/lib/mock/f39-build-2175754-51072/root/chroot_tmpdir/scmroot/osbuild-composer
Cloning into '/var/lib/mock/f39-build-2175754-51072/root/chroot_tmpdir/scmroot/osbuild-composer'...
$ git fetch origin b3495f4313924745145b24ef4d5b4373d281a179:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/osbuild-composer
 * [new ref]         b3495f4313924745145b24ef4d5b4373d281a179 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3495f4 [packit] 97 upstream release