Org: Warn if overlaps occur in availability periods in add / edit.

[cyrillkuettel]

Please fill in the commit message below and work through the checklist. You can delete parts that are not needed, e.g. the optional description, the link to a ticket or irrelevant options of the checklist.

Commit message

Org: Warn if overlaps occur in availability periods in add / edit.

TYPE: Feature
LINK: OGC-2602

Checklist

• I have performed a self-review of my code

[linear]

OGC-2602

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 85.50%. Comparing base (57c07b7) to head (35bbe7b).
⚠️ Report is 3 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

Files with missing lines	Coverage Δ
src/onegov/org/forms/allocation.py	95.01% <ø> (ø)
src/onegov/org/views/allocation.py	91.00% <100.00%> (+0.19%)	⬆️

... and 1 file with indirect coverage changes

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[Daverball]

I think this should be new_allocations_count + updated_count

[cyrillkuettel]

Thanks for catching that.

It seems also that warn_about_skipped_allocations would need to be remembered to be called by other views if they modify rules somehow.