I have ST3 open on my project directory, with no files open. Hit Cmd-T (or -P), start typing, then backspace. When you clear out all characters, crash. It doesn't happen if there is a file open.
Faster way to reproduce: Cmd-T, then Esc.
Confirmed this is also the case for me.
Thanks for the report, will fix for the next build
came to report this. happens for me on Ubuntu x64
Fixed in build 3007. Thanks for the quick work!