Revert changeset ef1f1a4b2efb; add another test for glob: patterns
With that changeset, it's impossible to use a glob: pattern to match
e.g. all files ending in .py - glob:**.py would also match all files
in a directory called dir.py.
# should print nothing
# should print ? b/x
? b/x
# should print A b/x
A b/x
# should forget b/x
forgetting b/x
# should print nothing