Avoid throwing an exception on getting references when migrating content with changed data types (16)#20155

AndyButland merged 2 commits intomainumbraco/Umbraco-CMS:mainfrom

v16/bugfix/avoid-exception-on-get-references-after-migrationumbraco/Umbraco-CMS:v16/bugfix/avoid-exception-on-get-references-after-migrationCopy head branch name to clipboard