$ git clone -n https://src.fedoraproject.org/rpms/java-1.8.0-openjdk-portable.git /var/lib/mock/f39-build-1995418-43802/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk-portable
Cloning into '/var/lib/mock/f39-build-1995418-43802/root/chroot_tmpdir/scmroot/java-1.8.0-openjdk-portable'...
$ git fetch origin d1aa2d27ddf350ac8174f0d373370b370d42fd70:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-1.8.0-openjdk-portable
 * [new ref]         d1aa2d27ddf350ac8174f0d373370b370d42fd70 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d1aa2d2 removed duplicated portbale in tarball names