Has the Modify behaviour changed?

Or am I just imagining it?

Recently I have clicked More/Modify on some of my Replies which opens the edit window. While the edit window was open I wanted to scroll down to read some of the other Replies in the Thread to check the exact name of a person who had pointed out an error I had made so that I could refer to him/her. But I could only see the Original Post which was, admittedly, quite long. Because of that I had to post the amended Reply without the name, then read the name and modify my Reply again to include the name.

I think in the past I could always scroll back through several Replies while I had the edit window open to modify my own Reply.

And to confuse things further, this limited scroll does not seem to happen all the time.

Has anyone else noticed this?