LiveData inline editing fails when classname or page name includes special symbols

To provide more precise steps what I did on Jetty with a 17.4.0 snapshot:

Steps to reproduce:

1. Create a page named "Class: Name". Edit it with the class editor and add a "String" property "myProperty".
2. Create a page named "Weird: Entry, of Class". Edit it with the object editor and add an object of type "Class: Name".
3. Repeat step 2 with name "Normal Entry".
4. Create a page with content

   {{liveData
     id="users"
     properties="doc.name,myProperty"
     source="liveTable"
     sourceParameters="className=Class%5C%3A%20Name.WebHome&translationPrefix=xe.userdirectory."
   /}}
   

5. Try editing any of the two entries.

Expected result:

Editing the entries works.

Actual result:

Not even the edit form loads.