Backport to 2.12.x: #6160: Improve arg handling in continuous_agg_trigfn #6162
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This is an automated backport of #6160: Improve arg handling in continuous_agg_trigfn.
This PR will be merged automatically after all the relevant CI checks pass. If this fix should not be backported, or will be backported manually, just close this PR. You can use the backport branch to add your changes, it won't be modified automatically anymore.
For more details, please see the documentation
Original description
Improve arg handling in continuous_agg_trigfn
When
continuous_agg_invalidation_trigger
is called without any argument, fcinfo->context in continuous_agg_trigfn is NULL and it should not be dereferenced.Disable-check: force-changelog-file