$ git clone -n https://src.fedoraproject.org/rpms/ghc-hgettext.git /var/lib/mock/f39-build-1713703-41228/root/chroot_tmpdir/scmroot/ghc-hgettext
Cloning into '/var/lib/mock/f39-build-1713703-41228/root/chroot_tmpdir/scmroot/ghc-hgettext'...
$ git fetch origin 45c26d3d9437af06dc87fc5ffc12907b6d08e31d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hgettext
 * [new ref]         45c26d3d9437af06dc87fc5ffc12907b6d08e31d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45c26d3 bump release