Parameter [overwrite] is supported when adding a route.

[haok228]

• addding a route in blueprints

from sanic import Blueprint
from sanic.response import json

v1 = Blueprint(name="Version1", version=1)

@v1.route("/something")
def something(request):
    return json({"my": "something1"})

v2 = v1.copy("Version2", version=2)

# sanic_routing.exceptions.RouteExists: Route already registered: v2/something [GET]
@v2.route("/something", overwrite=True)
def something(request):
    return json({"my": "something2"})

[codecov]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (af67801) 88.938% compared to head (e970697) 88.837%.
Report is 34 commits behind head on main.

❗ Current head e970697 differs from pull request most recent head 2a6aefc. Consider uploading reports for the commit 2a6aefc to get more accurate results

Additional details and impacted files

@@              Coverage Diff              @@
##              main     #2746       +/-   ##
=============================================
- Coverage   88.938%   88.837%   -0.101%     
=============================================
  Files           92        92               
  Lines         6952      6961        +9     
  Branches      1185      1189        +4     
=============================================
+ Hits          6183      6184        +1     
- Misses         527       532        +5     
- Partials       242       245        +3     

Files	Coverage Δ
sanic/mixins/routes.py	96.694% <100.000%> (+0.027%)	⬆️
sanic/models/futures.py	100.000% <100.000%> (ø)
sanic/router.py	96.039% <100.000%> (+0.039%)	⬆️
sanic/blueprints.py	89.767% <33.333%> (-1.621%)	⬇️

... and 1 file with indirect coverage changes

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[ahopkins]

Thanks for the effort on this PR. With the change in #2716, is this still necessary? Are you trying to achieve a different outcome?

bpv2 = bpv1.copy("bp_v2", version=2, allow_route_overwrite=False)

[ahopkins]

I'm closing this because I do not think we need it anymore. If I am wrong, please LMK.