I've been pretty bad about writing anything down about it, but off the top of my head, using kasyan's script that I've linked to below to build the queries more easily
By conditional text do you mean this part?
changeConditionsMode:1919250519
that is actually just automatically added to the query line in a script I use to build my find/change lists.
That script was written by Kasyan and is actually on your site https://creativepro.com/find-change-scripting-goodness.php
Also from Kasyan over on the adobe forums:
changeConditionsMode – The change conditions mode, change either replaces applied conditions or adds to applied conditions.
Can be:
ChangeConditionsModes.ADD_TO Change adds to applied conditions. ChangeConditionsModes.REPLACE_WITH Change replaces applied conditions. (The same as changeConditionsMode:1919250519)
or
ChangeConditionsModes.NothingEnum.NOTHING