Comment 0 for bug 1885150

If my snap has no 'architecture' entry, I can happily do

snapcraft remote-build --build-on=armhf

However as soon as I add something like, say

architectures:
  - build-on: armhf
  - build-on: amd64

then I can no longer ask for just the armhf build from the commandline; I need to edit the yaml directly.

This is awkward when I'm trying to fix build errors in particular architectures in my snap.