F8 key does not trigger search in case locator

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Symptom
The function key F8 does not trigger the search in the case locator
screen.
Other terms
case, case locator, search, F8, query
Reason and Prerequisites
Program Error
Solution
Kindly apply the note to get the corrections.
There are certain manual corrections which have to be performed:
Manual Corrections:
1. Go to transaction se24
2. Provide class name as CL_SRM_LOC_SAPGUI_FE in the Object Type field.
3. Go to [...]