nested genericParams crash

[mratsim]

The following crashes the compiler

import std/typetraits

func getBaseType(T: typedesc): typedesc =
  ## Unwrap nested seq/array to get the underlying base type
  when (T is seq|array):
    getBaseType(genericParams(T)[0])
  else:
    T


echo getBaseType(seq[seq[seq[int]]])

Error is

.../build/crash.nim(11, 17) template/generic instantiation of `getBaseType` from here
.../build/crash.nim(6, 30) template/generic instantiation of `genericParams` from here
.../build/crash.nim(11, 17) template/generic instantiation of `getBaseType` from here
.../build/crash.nim(6, 30) template/generic instantiation of `genericParams` from here
Error: internal error: /home/runner/work/nightlies/nightlies/nim/compiler/semtypes.nim(1899, 26)
No stack traceback available
To create a stacktrace, rerun compilation with './koch temp c <file>', see https://nim-lang.github.io/Nim/intern.html#debugging-the-compiler for details