[instrument builder] Min/max null default value

[laemtl]

The default value "0" for both 'Min' and 'Max' fields return 'Max value must be larger than min value' error on clicking 'Add Row'.
The 'Min' and 'Max' fields are now empty as the default.

• Resolves [instrument_builder] Numeric Min/Max fields auto-populated with "0" #6568

[zaliqarosli]

unfortunately by default, the error message is popping up even if you don't touch the min and max fields. you'll need to modify the less/greater than check to consider the case when the values are null.

for some reason, if you fill in the fields with a number, and then delete them, the error doesn't pop up because the last number of the two that you delete becomes a 'NaN' type which apparently passes the less/greater than check:

[laemtl]

Thanks @zaliqarosli, I will fix that!

[zaliqarosli]

i am able to add a numeric value with min 0 and max 0 without the error popping up