I have posted this: Bug 155087 - Autocorrection in Romanian applies to existing words. I have come up with a solution by modifying that auto-correction list for Romanian.
Is it possible to add the changes in my currently running version of LO (7.5.2) by maybe adding/pasting the DocumentList.xml file that I have edited and which I have locally?
Changing manually all the entries in auto-correction settings is cumbersome (I have already done that to fix the bug).