opslevel update service command correctly updates fields

[davidbloss]

Issues

Regression with update service command

Changelog

Stop updating omitted fields (nil in this case) and only set fields to null if string is an empty string or null

• List your changes here
• Make a changie entry

Tophatting

[rocktavious]

I know i had qualms about the null string being a thing. But if this truely fixes something then i'm good with it. I would be cautious about merging this though as it might have intended side effects because in json terms "null" is not the same as null but you are making them equal here

[davidbloss]

I know i had qualms about the null string being a thing. But if this truely fixes something then i'm good with it. I would be cautious about merging this though as it might have intended side effects because in json terms "null" is not the same as null but you are making them equal here

I took the "null" part out as it wasn't needed and if customers set something to null in json/yaml it's read in as nil anyway