I'm guessing you are using an older build - a bug like that was fixed a couple of months ago. be sure you're testing with the latest nightly build - or wait for the beta that should be released any day now.
If you can still reproduce on a current build, please attach your score and more precise steps to reproduce the problem (eg, what exactly you are pasting). But I think you will find it's fixed already.
Comments
I'm guessing you are using an older build - a bug like that was fixed a couple of months ago. be sure you're testing with the latest nightly build - or wait for the beta that should be released any day now.
If you can still reproduce on a current build, please attach your score and more precise steps to reproduce the problem (eg, what exactly you are pasting). But I think you will find it's fixed already.