Automated issue comments show up as "content: null" in API response (BB-9487)

Each time i get all comments from a selected issue , they also include automated created ones, but when listed the content section is blank.

For example, say i edited an issue, once updated there will be an extra comment that says:

     (USERNAME)  edited description

Now when i list this via my api the content section is blank/null:

#!php

array (size=7)
      'content' => null
      'author_info' => .....

So when i am outputing this it does not look nice with no comment.

So is there a way to:

• only receive non automated comments.
• turn off this automated comment thingy
• or actually view them rather than return null or is this a bug

At the moment i am filtering out any blank ones but that just adds more code, thanks