$ git clone -n https://src.fedoraproject.org/rpms/ghc-ansi-terminal.git /var/lib/mock/f38-build-side-42-init-devel-749680-27661/root/chroot_tmpdir/scmroot/ghc-ansi-terminal
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-749680-27661/root/chroot_tmpdir/scmroot/ghc-ansi-terminal'...
$ git fetch origin eb171a1cacc172638c35ba557630f2b00713e37d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-ansi-terminal
 * [new ref]         eb171a1cacc172638c35ba557630f2b00713e37d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb171a1 Convert to %autorelease and %autochangelog