When you save a Journal Article, LR store a copy in AssetEntry but the title is stripped down to 300 caracters even if the column is specified as longtext.
This causes a problem if the title is stripped down because the title is stored in XML inside the DB, so the syntax won't of the XML won't work.
This is particularly a problem in multilingual sites because the title of all the versions are stored in the same field.
This causes a problem in the RSS view, I don't know if there's any other impacts.
The code that cuts the title is in the class