There is no field 'ids' on a gamification.goal, but one called 'id'
Without this commit, calling _get_serialized_challenge_lines (or
indirectly, calling report_progress) with a non-empty subset_goals was
failing due to an invalid domain.
This is not supposed to happen on standard flow but can be triggered
with manual modification of date fields and refreshing a challenge.
Fixesodoo/odoo#25913closesodoo/odoo#54387
X-original-commit: 1e3483d2fc99763940396936758cf99b14d0a118
Signed-off-by: Martin Trigaux (mat) <mat@odoo.com>