Using %d macro returns "Array"

Description

When using date macro, the word "Array" is returned instead of the date.

Distribution Name and Version

Debian

FusionDirectory Version

1.4-2~jenkinsbuild570

Steps to Reproduce

1. Create a template
2. Set %d|% in an attribute

Expected behavior:

Attribute value is set to current date

Actual behavior:

Attribute value is set to Array

Reproduces how often:

100%