[Bug] Sanic-ext breaks @app.route(unquote=True)

[xmcp]

Describe the bug
Sanic v21.3 adds the unquote arg in @app.route to url-decode parameters in routes. But when sanic-ext is loaded, parameters will not be decoded even unquote is set.

Screenshots
Not related to swagger.

To Reproduce

from sanic import Sanic
from sanic.response import text

app = Sanic("test")
#app.config.AUTO_EXTEND = False

@app.route("/<param:str>", methods=["GET"], unquote=True)
async def handler2(request, param):
    return text("OK2 " + param)

Then visit http://127.0.0.1:8000/%E5%95%8A and find that it returns OK2 %E5%95%8A.

Expected behavior
The page should return OK2 啊.

Environment (please complete the following information):

• OS: Windows 10
• Browser: not related
• Version sanic==22.9.0, sanic-ext==22.9.0

Additional context
After uncommenting app.config.AUTO_EXTEND = False in the script above, sanic works as expected. So this issue is caused by sanic-ext.

[ChihweiLHBird]

Thanks for the issue. I am going to investigate it.

[ChihweiLHBird]

I found that when the app is extended, for some reason, unquote(basket['__matches__'][0]) isn't injected into the find_route method of the router.
@ahopkins Can you take a look at this issue later? Thanks!

[xmcp]

Note: This issue is also reproducible on 21.12.3 which is LTS.

[ahopkins]

I see what the issue is. I will get a patch out for 22.12 and 21.12.