$ git clone -n https://src.fedoraproject.org/rpms/ghc-entropy.git /var/lib/mock/f39-build-1507060-35223/root/chroot_tmpdir/scmroot/ghc-entropy
Cloning into '/var/lib/mock/f39-build-1507060-35223/root/chroot_tmpdir/scmroot/ghc-entropy'...
$ git fetch origin 9ed18ba359b1f0c12e217d96847e0c5982b37f0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-entropy
 * [new ref]         9ed18ba359b1f0c12e217d96847e0c5982b37f0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9ed18ba bump release