\bind "M-Return" "paragraph-break inverse"
\bind "C-Return" "newline-insert newline"
\bind "C-S-Return" "newline-insert linebreak"
-\bind "A-space" "command-alternatives space-insert protected ; math-space"
+\bind "A-space" "command-alternatives math-space ; space-insert protected"
\bind "nobreakspace" "space-insert protected"
\bind "C-A-space" "space-insert normal"
\bind "S-A-space" "space-insert thin"