Bug with Scratchblocks forum extension

  1. What browsers show this problem?
  2. Please share an example project (if possible).
  3. Describe the steps to reproduce this issue.
    Create a forum post with the content below:
[scratchblocks]when gf clicked[/scratchblocks]
  1. What does Snap! currently do?
    Not show the green flag image.
  2. What should Snap! do instead?
    Show the green flag image.

I think this is caused because the system thinks @greenFlag is a user, so it causes conflict.

the flag in the when flag clicked block is not @greenFlag, it's the image, but if you do it manually like, when @greenFlag clicked :: control hat, it'll show up like this
[scratchblocks]when @greenFlag clicked :: control hat[/scratchblocks]