$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-java.git /var/lib/mock/f39-build-1714380-41228/root/chroot_tmpdir/scmroot/ghc-language-java
Cloning into '/var/lib/mock/f39-build-1714380-41228/root/chroot_tmpdir/scmroot/ghc-language-java'...
$ git fetch origin 93115b54657cd815b9c996587e492c4d8ca7c2ae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-language-java
 * [new ref]         93115b54657cd815b9c996587e492c4d8ca7c2ae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93115b5 bump release