[Octave-bug-tracker] [bug #59237] Crash when pasting 64 commands

[T Knauss]

Follow-up Comment #3, bug #59237 (project octave):

I just tried pasting into the CLI instead of the GUI, and I was NOT able to
reproduce it there. Seems like this is indeed related to the GUI. Maybe a
timing issue when invoking methods.

To answer your the questions:
1. No, it does not crash when invoked from a script.
2. I don't want to do experiments with my business computer. It works when I
paste in blocks of 16, which is acceptable for me. Therefore I will not test
with different versions of Python.

During further tests, I found more "bugs":
When pasting the 7 "preparation" lines multiple times, Octave at the 2nd
pasting either
- works as expected without errors
- crashes without notice, no errors in diary
- shows error messages like: (empty lines removed by me)
(...)
>> syms alpha m_x m_y s_x s_y x y
error: if: undefined value used in conditional expression
(...)
>> TR = [[cos(alpha) -sin(alpha) 0]; [sin(alpha) cos(alpha) 0]; [0 0 1]]
TR = (sym 3x3 matrix)
  [cos(alpha)  -sin(alpha)  0]
  [                          ]
  [sin(alpha)  cos(alpha)   0]
  [                          ]
  [    0            0       1]
>> error: parse error
error: called from
    size at line 132 column 5
    ismember at line 125 column 5
    syms at line 102 column 5
>>

(...)
>> syms alpha m_x m_y s_x s_y x y
error: 'valid_sym_assumptions' undefined near line 82 column 9
error: called from
    size at line 84 column 3
    syms
(...)
>>

And I noticed that the calculation becomes really slow after many crashes. But
no high CPU usage in Process Explorer.

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