Nested generics cause unhandled compiler exception

Summary

In a small project, several classes are using nested generics:

TmsObj is a base class of TObject, TmsList<T:TmsObj> should be a list to hold TmsObj items
TmgObj is a base class of TmsObj, TmgList<T:TmgObj> is a list based on TmsList, to hold TmgObj items
TmgGroup is inherited from TmgObj, and TmgGroups is inherited from TmgList
TmgTariffs is inherited from TmgObj, and TmgTariffs is inherited from TmgList In the current form, the default compiliation succeded, but quick compilation will fail with an unhandled compiler exception. Please note: the actual implementations of TmsList etc. are not working, these are only stubs. But the project compiles (once) and I could reproduce the error several times.

System Information

Operating system: Windows 10
Processor architecture: x86-64
Compiler version: 3.2.2, installed via fpcupdeluxe
Device: Computer

Steps to reproduce

See example project, make a full compilation (Shift-F9), change something in UmgGroups, e.g. add or remove self.Description := 'foo';to LoadFromCache(), then do a quick compile (Ctrl-F9).

Example Project

GenericsException2022.zip

What is the current bug behavior?

Debug: An unhandled exception occurred at $0000000100022F8D:
Debug: EListError: List index exceeds bounds (7)
Debug:   $0000000100022F8D
Debug:   $00000001000D45D1
Debug:   $000000010019C469
Debug:   $000000010019D46E
Debug:   $000000010003DCE5
Debug:   $00000001000D4805
Debug:   $00000001000D3D1B
Debug:   $00000001000D45D1
Debug:   $00000001000D3F03
Debug:   $00000001000D45D1
Debug:   $000000010019C469
Debug:   $000000010019D46E
Debug:   $000000010003DCE5
Debug:   $00000001000D4805
Debug:   $00000001000D3D1B
Debug:   $00000001000D45D1
Debug:   $000000010019C469
Debug: 
Verbose: X:\Lazarus\fpc\bin\x86_64-win64\ppcx64.exe returned an error exitcode

What is the expected (correct) behavior?

Should compile without errors