fix: catch ValueError and ZeroDivision errors on early jexl evaluation

[StephanH90]

Description

Currently, starting a new case fails if any of the JEXL evaluations in a form return a ZeroDivisionError in the signal layer.

Fix

Add ValueError and ZeroDivisionError to catch block around JEXL evaluation in signal layer.

More detailed description

We evaluate JEXL expressions greedily in the signal layer, but do so without raising:

caluma/caluma/caluma_form/signals.py

Line 104 in 7125c6a

value = jexl.evaluate(field.question.calc_expression, raise_on_error=False)

However, in the jexl.update function we only catch TypeError:

caluma/caluma/caluma_form/jexl.py

Line 201 in 7125c6a

def evaluate(self, expr, raise_on_error=True):

This is also not consistent with the catch block here, where we catch TypeError, ValueError and ZeroDivisionError:

caluma/caluma/caluma_core/jexl.py

Line 81 in 7125c6a

def _handle_error(func, subject, *args):

This fix is time-critical as it is currently not possible to start a certain form which uses many calculated fields.

[winged]

LGTM - but please no mention of customers (or their problems) in public spaces