Problem with renamed Foldername

Dear Ladies and Gentlemen

at the moment we are at Power BI Report Server Version of January: Version: 1.6.7364.4075 (Build 15.0.1102.777), Released: March 2, 2020

originally we had a Folder called "KPI", which includes 2 Reports. then the Folder was renamed to "KPI's".

this should not have worked, because of the exclude list of special characters, which are not allowed in a new OR changed folder.

but it worked.

problem is, i can no longer access this folder (cannot access the Reports)

now  we saw, that a new version May-Edition is available, which have a bug fix regarding that issue:

Power BI Report Server

• Version: 1.8.7450.37410 (Build 15.0.1103.227), Released: May 27, 2020
  • Features
    • Added support for customizable catalog connection pool size.
    • Improved behavior when viewing a report during a refresh operation.
  • Security updates
  • Bug fixes
    • Fixed two issues relating to single quotes in folder and report names.

my question is:

when i apply the new Version, what happens with the for us very important folder "KPI's" and his content and could this bugfix resolve the problem ??

or is there another solution for fixing above mentioned issue.

thanks in advance for your help

Toni