$ git clone -n https://src.fedoraproject.org/rpms/java-latest-openjdk-portable.git /var/lib/mock/f41-build-side-1-2834452-33684/root/chroot_tmpdir/scmroot/java-latest-openjdk-portable
Cloning into '/var/lib/mock/f41-build-side-1-2834452-33684/root/chroot_tmpdir/scmroot/java-latest-openjdk-portable'...
$ git fetch origin 25a204173d7045b7e02a40dbdf73718eab23b709:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-latest-openjdk-portable
 * [new ref]         25a204173d7045b7e02a40dbdf73718eab23b709 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25a2041 Fixed release