Class is set as string on MoreLink.
Class should be set as array.
@mikispeed thanks for fixing my mistake with the classes not being an array:)
There may be others in core as I've come across these in the past but not many left as we did a sweep to clean them up before but new ones like this sneak in by accident:)
This seems like a straight-up bug fix to me, so should be fine to commit according to https://www.drupal.org/contribute/core/beta-changes.
Committed and pushed to 8.0.x. Thanks!
Issue #2368957 by mikispeed: Fixed Set class on MoreLink as array...
Automatically closed - issue fixed for 2 weeks with no activity.
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