When splitting a path of the form "a/*/b/**", globstar.iglob() would previously have attempted to walk "a/*" as a literal directory instead of expanding the glob pattern into a list of directories and walking each of them.
When splitting a path of the form "a/*/b/**", globstar.iglob() would previously have attempted to walk "a/*" as a literal directory instead of expanding the glob pattern into a list of directories and walking each of them.