strange behaviors with subtasks in taskeditor

Hi,

I discovered a few strange behaviors while ... well, looking for them in the taskeditor.

If you create a new subtask, then put the cursor after the arrow and before the task's name, then press enter, the arrow will disappear but the subtask will still exist and its title will still be a link, at least until you write something.

If you create a subtask, then put the cursor before the arrow and enter any character, the subtask will be deleted, the text won't be a link anymore but the arrow will stay there, undeletable, until you remove any character on the right of it.
Then it becomes an arrow-character looking like that one: ⟶
And then you can delete it. If you copy this character, you'll get a '-' character (I think this comes from bug #339881).

Last thing, you can get weird behavior using copy-paste in the task editor.
If you create a subtask, then press enter, select the task's text and the following untitled one (with its arrow), copy and paste it directly, you can get something like this: http://img687.imageshack.us/img687/4761/captureasdffsda2y.png (in this example my task's title was "asdfasfda") (original, isn't it?)
And then if you write something at the end of the line, only the new chars will appear as links.

Well, that's all for now.
I think there may be a few other things like that but I found no problem with normal usage (btw great work for the 0.2 version, liked the improvements) (specially the new calendars, with single clics and options 'today', 'later', ...).

Just for my future bug reports... for something like this, should I create three bugs? Seems to me that the problems are really close to each other, so I thought that grouping them may be useful. And should some of them be a comment on bug #339881?

Cheers
fonji