FIX: Resolve short URLs after diffHTML was loaded (PR #14296)

Short URLs were resolved before diffHTML was loaded and content was swapped by it, which meant that no URLs were found and the URLs remained unsolved. This caused image elements to be blank.


Is this no longer needed?

This has been fixed in 1.0.0-beta.18 I think. The other call to release is no longer needed since 1.0.0-beta.19 I think.