RATIONALE
Stored editable fields receive their values either from compute either from
user input. If a user input is given to create / write compute method is not
called. If multiple fields are computed through the same method giving one
field value discard call to compute method and other fields are not called.
SPECIFICATIONS
Split ``_compute_from_event_type`` compute method so that event template
configuration related fields are independent.
Fix seats_limited being computed in sevearl method which should not occur.
LINKS
COM PR #65688
Task ID-2455165
X-original-commit odoo/odoo@3c09e86b4e
X-original-commit: ddc4ade6ad81c63efebd848ec56d197cd18e8041