parsePathFlakeRefWithFragment(): Handle query params in the non-git case

Backported from lazy-trees.

src/libflake/flake/flakeref.cc

@@ -183,11 +183,13 @@ std::pair<FlakeRef, std::string> parsePathFlakeRefWithFragment(
         path = canonPath(path + "/" + getOr(query, "dir", ""));
     }
 
-    fetchers::Attrs attrs;
+    return fromParsedURL(fetchSettings, {
-    attrs.insert_or_assign("type", "path");
+        .scheme = "path",
-    attrs.insert_or_assign("path", path);
+        .authority = "",
-
+        .path = path,
-    return std::make_pair(FlakeRef(fetchers::Input::fromAttrs(fetchSettings, std::move(attrs)), ""), fragment);
+        .query = query,
+        .fragment = fragment
+    }, isFlake);
 }
 
 /**