Hang in J902 and J901 from ~. _.

[jrfondren]

J becomes unresponsive if asked to find the nub of an array containing Indeterminate with tolerant comparison:

   JVERSION
Engine: j902/j64avx2/linux
Beta-b: commercial/2020-06-22T10:06:54
Library: 9.02.03
Platform: Linux 64
Installer: J902 install
InstallPath: /home/jrfondren/j/j902
Contact: www.jsoftware.com
   ~. _.

Same behavior's noted in the latest J901. It appears to be a CPU busyloop.

With intolerant comparison each Indeterminate is treated as unique and there's no busyloop:

   (~.!.0) _. 1 _. 2 _. 1
_. 1 _. 2 _.

[moon-chilled]

works for me on the now-latest version:

   JVERSION
Engine: j902/j64avx2/freebsd
Beta: GPL3/2020-10-07T23:58:30
Library: 9.02.05
Platform: Linux 64
Installer: unknown
InstallPath: /home/mc/code/jsrc/jsource/jlibrary
Contact: unknown
   ~._.
_.