Avoid side effect of setting 0 as default value. Temporarily, this was not a problem, as 0 was a valid baId, but since server Rev d1d7d684800c this is not the case anymore.

# use glob syntax.
syntax: glob
doc
css
gfx
build
extjs
*.orig
*.jse
*.rej
*/.*
*.swp
ext-*/
resources/
# switch to regexp syntax.
syntax: regexp