Backslashes with placeholders

[poster]

I noticed another problem in threads of the former forum software, which have not been undergoing a conversion:
Threads that refer to create multi-value Fields with the double-backslash"\\".
Example:

Double slash trick

Hello! I often use "\\" as separator character in some tags, but instead of one tag i get several because of splitting. Is there any way to disable this double slash trick? (I know about "Merge dublicate tags" action, but may be there is better way?)