SIGSEGV when compiling `when` with typedesc

[arnetheduck]

Nim Version

86bbc73

Description

template test(): typedesc =
  when true:
    int
  else:
    bool

const c = default(test())
echo c

Current Output

nim c test
......................................................................SIGSEGV: Illegal storage access. (Attempt to read from nil?)
Segmentation fault         (core dumped) nim c test

Expected Output

Known Workarounds

No response

Additional Information

No response