Summary
The Propagate Rights option replaces all explicitly assigned entry access rights on all children entries of the selected folder. This option can drastically change the security setup of your Laserfiche repository with no simple method of undoing the change. The following SQL script will start at a specified folder and simply remove all explicitly assigned entry access rights from all subfolders and documents that reside below the specified folder. Be aware that this script cannot specifically restore any explicitly assigned entry access rights that existed prior to you using the Propagate Rights option.
Workaround
Download and run the following SQL script to clear out all explicitly assigned security rights from a branch of your repository's folder tree structure.
To remove explicitly assigned rights from a portion of the folder tree
SET @root = REPLACE_WITH_TOCID_OF_TOP_OF_SUBTREE
SET @root = 1234
cmd
osql -E -S ServerName -d "DatabaseName" -i "ScriptPath"
where ServerName is the name of your SQL server, DatabaseName is the name of the SQL database associated with the Laserfiche repository you want to modify, and ScriptPath is the full path (including the file name and extension) to the extracted subtree-acl-remove.sql file.