$ git clone -n https://src.fedoraproject.org/rpms/java-latest-openjdk-portable.git /var/lib/mock/f39-build-1776564-41525/root/chroot_tmpdir/scmroot/java-latest-openjdk-portable
Cloning into '/var/lib/mock/f39-build-1776564-41525/root/chroot_tmpdir/scmroot/java-latest-openjdk-portable'...
$ git fetch origin e4459f4dcc7ba596c3d140a04dd284ccaa1ead0a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/java-latest-openjdk-portable
 * [new ref]         e4459f4dcc7ba596c3d140a04dd284ccaa1ead0a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e4459f4 moved docs and miscs to release-only condition