Im having this same problem on my S2 since i upgraded to 4.0.4 and im sick of it. So do what i do and start posting comments in thier youtube channel for everyone to see, if everyone does it, it will be flooded with comments like mine:

Hi Samsung, when are you going to fix the Copy Paste CRASH ISSUE???? You say that only a few people are effected but you know this isnt true, when are you going to stop lying and fix the problem? You said there would be an OTA update but none have arrived. Once again, when will you STOP lying and fix the problem so we can all use our devices properly?

Thumbs up if you have this problem and want Samsung to stop lying and fix the issue?

If everyone starts doing it, they will fix it.