Fix setting custom field TextArea attributes

[colemanw]

Overview

Fix code that was potentially overwriting attributes for existing fields during update ops.

Before

Attributes could be overwritten during update.

After

Defaults only set for create; preserved for update.

Comments

The comment made no sense whatsoever, but was friendly enough to end with a smiley :)

[civibot]

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[eileenmcnaughton]

test this please

[eileenmcnaughton]

OK - I took a look into this code and agree this makes sense - not sure about the fail - but good to merge if it passes this time