$ git clone -n http://fedora.riscv.rocks:3000/rpms/java-21-openjdk.git /var/lib/mock/f40-build-789655-135946/root/chroot_tmpdir/scmroot/java-21-openjdk
Cloning into '/var/lib/mock/f40-build-789655-135946/root/chroot_tmpdir/scmroot/java-21-openjdk'...
$ git fetch origin 6a897a3a9c4aec532150c8cce6ad701a1ec1d301:KOJI_FETCH_HEAD
From http://fedora.riscv.rocks:3000/rpms/java-21-openjdk
 * [new ref]         6a897a3a9c4aec532150c8cce6ad701a1ec1d301 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a897a3 Test directory structure