$ git clone -n https://src.fedoraproject.org/rpms/java-17-openjdk-portable.git /var/lib/mock/f38-build-side-42-init-devel-983947-29064/root/chroot_tmpdir/scmroot/java-17-openjdk-portable
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-983947-29064/root/chroot_tmpdir/scmroot/java-17-openjdk-portable'...
$ git fetch origin 6f693dc993f61e37745b2888ea5a3150fa688239:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-17-openjdk-portable
 * [new ref]         6f693dc993f61e37745b2888ea5a3150fa688239 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6f693dc introduced archfull src archive