$ git clone -n https://src.fedoraproject.org/rpms/java-11-openjdk-portable.git /var/lib/mock/f39-build-1911606-42872/root/chroot_tmpdir/scmroot/java-11-openjdk-portable
Cloning into '/var/lib/mock/f39-build-1911606-42872/root/chroot_tmpdir/scmroot/java-11-openjdk-portable'...
$ git fetch origin dd97e2b708b53c8ad9011ad0172daeddc37f6066:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-11-openjdk-portable
 * [new ref]         dd97e2b708b53c8ad9011ad0172daeddc37f6066 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd97e2b Fixed doc and misc name macro