Disable 'auto-accept' (for lack of a better word)

Is there a way to disable ‘auto-accept’? Here is what I mean with that:

Last week I created a block and included todays timestamp.
This block shows up today in my linked pages list for today.
I would like to change the date to next week.
The moment I remove todays date, the entry disappears without me being able to add next weeks date.
Now I need to find this entry again, and add the desired date.

It would be nice if this only happened after I hit or I click outside the block somewhere.