We've run into an issue where we are getting an error on a link field:
Error: Unsupported operand types in /core/modules/link/src/Plugin/Field/FieldFormatter/LinkFormatter.php on line 245
I don't know if it's possible to reproduce this error with just core. The error seems to be coming from a translation issue in Paragraphs where the "options" property isn't getting set right. This patch is a work-around to that but it's just checking that $options is an array and making it one if it's not so it won't hurt anything to have it in there as a failsafe.