cmd/cue: add test for 3646
Issue #3646
Signed-off-by: Marcel van Lohuizen <mpvl@gmail.com>
Change-Id: Iff6774ef8219fec53afe355c51b088681bc35f61
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1207401
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: CUEcueckoo <cueckoo@cuelang.org>
Unity-Result: CUE porcuepine <cue.porcuepine@gmail.com>