Unexpected Conversion in series dashArray with XY Chart

Ignition Version 8.1.14

When trying to set the dashArray property of a series and Input like 1,1 is interpreted as an integer, and you get a warning saying that an integer was found but a string was expected. Not so bad, except the comma is then removed and the value becomes 11.

The manual seems to indicate that you must use string literals, however, when you use string literals no dashes are rendered.