Add BroadcastCyclePoint type to schema

[MetRonnie]

This is a small change with no associated Issue.

Needed for proper mutation form validation - cylc/cylc-ui#1073

The Broadcast cycle point option can be a cycle point or * (supports either of those two but not cycle point globs)

Requirements check-list

• I have read CONTRIBUTING.md and added my name as a Code Contributor.
• Contains logically grouped changes (else tidy your branch by rebase).
• Does not contain off-topic changes (use other PRs for other changes).
• Applied any dependency changes to both setup.cfg and conda-environment.yml.
• Does not need tests (why?).
• Change log entry included
• No documentation update required.
• [if bugfix] PRs raised to both master and the relevant bugfix branch. Merge 8.0.x into master #5039

[MetRonnie]

The Broadcast cycle point option can be a cycle point or * (supports either of those two but not cycle point globs)

Or can it? This was the impression I got from the existing code but it isn't explicitly stated

[MetRonnie]

(Test failure due to failed coverage fetch only)

[oliver-sanders]

Or can it? This was the impression I got from the existing code but it isn't explicitly stated

I think * is just a marker for "all cycles" not a glob.

cylc-flow/cylc/flow/broadcast_mgr.py

Lines 250 to 255 in 0e0d1a6

	try:
	point_string = standardise_point_string(point_string)
	except PointParsingError:
	if point_string != '*':
	bad_point_strings.append(point_string)
	bad_point = True

[MetRonnie]

@datamel Could you try this out? Try using the broadcast mutation edit form in the UI, you should find that the broadcast cycle point option can be a cycle point or * (supports either of those two but not cycle point globs)

[datamel]

@MetRonnie, have you this working in the gui? I get an Invalid Cycle Point for *.

[MetRonnie]

Working for me, only errors when try to use * and another character, or some other invalid letter etc.

[datamel]

Thanks, maybe I have something up with my build. I get an invalid cycle point and then if I add a space I get a Cannot contain spaces error. I will re-build and see if I can spot my mistake.

[datamel]

A fresh environment has solved my problems with this. Thanks @MetRonnie.

[MetRonnie]

@datamel If you're happy with my conflict-resolve merge commit then hit the merge button