This line should flag a syntax error
# but this one shouldn't
| although this one should, but for a different reason
 and so should this

libhello.so.0 libhello0 #MINVER#
| libhello0c2 (>= 1.2)
| hello-dbg
 hello@Base 1.0
* Build-Dep-Foo: bar
 hello2@Base 2.0 3
 hello3@Base 2.0 1
 hello3@Base 2.0 A
 dummy

libhello.so.2 libhello2 #MINVER#
* Build-Depends-Package: libbar
| libhello2 (>= 1:2.3)
 hello@Base 2.0

libhello.so.0 libhello0 #MINVER#
 duplicate@Base 1.0