$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-java.git /var/lib/mock/f42-build-878413-180614/root/chroot_tmpdir/scmroot/ghc-language-java
Cloning into '/var/lib/mock/f42-build-878413-180614/root/chroot_tmpdir/scmroot/ghc-language-java'...
$ git fetch origin 0ae9ae06e8384cd5b8ebb5376342663f4432ae16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-language-java
 * [new ref]         0ae9ae06e8384cd5b8ebb5376342663f4432ae16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ae9ae0 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild