fix error in column renderer when valud is empty and not null

[aamant]

Description (*)

fix class Mage_Adminhtml_Block_Widget_Grid_Column_Renderer_Number when value is empty

[sreichel]

Thanks. Whats the error message?

Can you provide steps to reproduce?

[aamant]

This error occurs when the expected value is empty but not null

[sreichel]

This error occurs

Please add error message and stacktrace.

[aamant]

[colinmollenhour]

The value of empty('0') is true, so this would change the behavior such that '0' renders the default value rather than '0'.

[aamant]

I've updated the test

[kiatng]

My test: https://onlinephp.io/c/38a62

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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