Discussion here has raised the question of whether or not the spell you are trying to .MOD is in multiple sources (or la source oading after your .MOD source)... A later loading source with the same spell could be adding the "original" description back on top of yours..
From: email@example.com <firstname.lastname@example.org> on behalf of Sorcerer of Itch <meister-proper@...>
Sent: Sunday, July 14, 2019 3:56:15 AM
Subject: [pcgen] RC6 Modding output texts .CLEAR not working anymore? #pathfinder
I have replaced a lot of spell descriptions with my own longer ones using a syntax like
Mount.MOD DESC:.CLEAR DESC:blabla
The tag .CLEAR used to wipe the original content.
Now on the pdf output sheets I somehow get to see all my own texts PLUS behind this the original text.
How can I avoid this?