$ git clone -n https://src.fedoraproject.org/rpms/gettext.git /var/lib/mock/f40-build-1931495-25121/root/chroot_tmpdir/scmroot/gettext
Cloning into '/var/lib/mock/f40-build-1931495-25121/root/chroot_tmpdir/scmroot/gettext'...
$ git fetch origin 205b6879b5d3c1d5b2608b4e02fc8b898950bc5a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gettext
 * [new ref]         205b6879b5d3c1d5b2608b4e02fc8b898950bc5a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 205b687 Add explicit package version requirement for libtextstyle