Deprecated strpos in WebformSubmissionListBuilder::getEntityIds()

Quick and simple patch to properly check for null values.

I think the idea is to fix all of these in 📌 [Drupal 10.1] Deprecated code Active rather than in separate issues.

This is not precisely a D10 issue. I think it is a PHP 8.1 notice.

Of course it's PHP. I evidently didn't understand the true goal of 📌 [Drupal 10.1] Deprecated code Active .

LOL, the goal is to stop people solely looking for commit credit from creating dozens of deprecated code fix tickets.

I don't care about commit credit at all. Just desperately needed this fixed for my site.

Close this ticket as a duplicate and steal the code for the main ticket, genuinely dont mind at all.

Automatically closed - issue fixed for 2 weeks with no activity.