Wikimedia Bugzilla is closed!

For some reason when someone uses multiple lines for a template like:

{{t
| a
}}

it includes a new line character in the output which leads to unexpected behavior. If however you use:

{{t
| 1=a
}}

a new line character is not included in the output which is the expected behavior.

This problem exists in both the new and old parser from a what a quick Special:ParserDiffTest test shows.

"| a" should be treated the same as "| 1=a" by not including a new line character.