$ git clone -n https://src.fedoraproject.org/rpms/java-11-openjdk-portable.git /var/lib/mock/f41-build-859468-168696/root/chroot_tmpdir/scmroot/java-11-openjdk-portable
Cloning into '/var/lib/mock/f41-build-859468-168696/root/chroot_tmpdir/scmroot/java-11-openjdk-portable'...
$ git fetch origin a82697777d1a457d48b49e7aa1b59f6fd106ef7d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-11-openjdk-portable
 * [new ref]         a82697777d1a457d48b49e7aa1b59f6fd106ef7d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a826977 Merge branch 'rawhide' into f40