Not sure if this is by design or not, but one thing about the clink 0.4.9 I found immensely convenient was the tab autocomplete auto-quoting that seemed to happen but appears missing in your v1.1.11.

For example, while using 0.4.9, typing

C:\Users\username> cd \program

Followed by the TAB key results in the following change:

C:\Users\username> cd "\Program

Note the inserting the opening quote symbol. This now allows you to type a space character and hit TAB again to reveal paths that match.

However, using your v1.1.11 and typing

C:\Users\username> cd \program

Followed by the TAB key doesn't quote and typing space also doesn't autofill paths with spaces.

In addition, using your version and typing

C:\Users\username> cd \program(space)fi

Followed by the TAB key doesn't autofill matching paths.

Am I missing something?