$ git clone -n https://src.fedoraproject.org/rpms/ghc-prettyprinter-ansi-terminal.git /var/lib/mock/f39-build-1939844-43150/root/chroot_tmpdir/scmroot/ghc-prettyprinter-ansi-terminal
Cloning into '/var/lib/mock/f39-build-1939844-43150/root/chroot_tmpdir/scmroot/ghc-prettyprinter-ansi-terminal'...
$ git fetch origin ae1a4104b62660912e21786fa1914d7aa9f8803a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-prettyprinter-ansi-terminal
 * [new ref]         ae1a4104b62660912e21786fa1914d7aa9f8803a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ae1a410 bump release