Remove the erroring on force-dynamic in static generation for app route

[huozhi]

What

• Remove the erroring of force-dynamic is not able to use during static generation
• Export the route segments properly in sitemap conventions

Why

We discovered this error is showing up when users are using force-dynamic with generating multi sitemaps.

When you have a dynamic route /[id]/route.js , and you have generateSitemaps defined which is actually using generateSitemaps under the hood , then you set the route to dynamic with export dynamic = 'force-dynamic'.

We should keep the route still as dynamic. generateStaticParams is only for generating the paths, which is static in build time. And the force-dynamic is going to be applied to each generated path.

Closes NEXT-2881

[ijjk]

Stats from current PR

Default Build (Increase detected ⚠️)

General

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
buildDuration	14.5s	14.4s	N/A
buildDurationCached	8s	6.7s	N/A
nodeModulesSize	198 MB	198 MB	N/A
nextStartRea..uration (ms)	441ms	444ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
2453-HASH.js gzip	30.8 kB	30.8 kB	N/A
3304.HASH.js gzip	181 B	181 B	✓
3f784ff6-HASH.js gzip	53.7 kB	53.7 kB	✓
8299-HASH.js gzip	5.04 kB	5.04 kB	N/A
framework-HASH.js gzip	45.2 kB	45.2 kB	✓
main-app-HASH.js gzip	242 B	242 B	✓
main-HASH.js gzip	32.2 kB	32.2 kB	N/A
webpack-HASH.js gzip	1.68 kB	1.68 kB	N/A
Overall change	99.3 kB	99.3 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
_app-HASH.js gzip	196 B	197 B	N/A
_error-HASH.js gzip	184 B	184 B	✓
amp-HASH.js gzip	505 B	505 B	✓
css-HASH.js gzip	324 B	325 B	N/A
dynamic-HASH.js gzip	2.5 kB	2.5 kB	N/A
edge-ssr-HASH.js gzip	258 B	258 B	✓
head-HASH.js gzip	352 B	352 B	✓
hooks-HASH.js gzip	370 B	371 B	N/A
image-HASH.js gzip	4.21 kB	4.21 kB	✓
index-HASH.js gzip	259 B	259 B	✓
link-HASH.js gzip	2.67 kB	2.67 kB	N/A
routerDirect..HASH.js gzip	314 B	312 B	N/A
script-HASH.js gzip	386 B	386 B	✓
withRouter-HASH.js gzip	309 B	309 B	✓
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Overall change	6.57 kB	6.57 kB	✓

Client Build Manifests

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
_buildManifest.js gzip	481 B	484 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
index.html gzip	528 B	528 B	✓
link.html gzip	541 B	541 B	✓
withRouter.html gzip	524 B	523 B	N/A
Overall change	1.07 kB	1.07 kB	✓

Edge SSR bundle Size

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
edge-ssr.js gzip	95.3 kB	95.3 kB	N/A
page.js gzip	3.04 kB	3.04 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
middleware-b..fest.js gzip	626 B	623 B	N/A
middleware-r..fest.js gzip	151 B	151 B	✓
middleware.js gzip	25.5 kB	25.5 kB	N/A
edge-runtime..pack.js gzip	839 B	839 B	✓
Overall change	990 B	990 B	✓

Next Runtimes

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
app-page-exp...dev.js gzip	170 kB	170 kB	✓
app-page-exp..prod.js gzip	96.9 kB	96.9 kB	✓
app-page-tur..prod.js gzip	98.6 kB	98.6 kB	✓
app-page-tur..prod.js gzip	93.1 kB	93.1 kB	✓
app-page.run...dev.js gzip	144 kB	144 kB	✓
app-page.run..prod.js gzip	91.5 kB	91.5 kB	✓
app-route-ex...dev.js gzip	21.4 kB	21.3 kB	N/A
app-route-ex..prod.js gzip	15.1 kB	15.1 kB	N/A
app-route-tu..prod.js gzip	15.1 kB	15.1 kB	N/A
app-route-tu..prod.js gzip	14.8 kB	14.8 kB	N/A
app-route.ru...dev.js gzip	21 kB	21 kB	N/A
app-route.ru..prod.js gzip	14.8 kB	14.8 kB	N/A
pages-api-tu..prod.js gzip	9.54 kB	9.54 kB	✓
pages-api.ru...dev.js gzip	9.81 kB	9.81 kB	✓
pages-api.ru..prod.js gzip	9.54 kB	9.54 kB	✓
pages-turbo...prod.js gzip	22.4 kB	22.4 kB	✓
pages.runtim...dev.js gzip	23.1 kB	23.1 kB	✓
pages.runtim..prod.js gzip	22.4 kB	22.4 kB	✓
server.runti..prod.js gzip	50.9 kB	50.9 kB	✓
Overall change	842 kB	842 kB	✓

build cache Overall increase ⚠️

	vercel/next.js canary	vercel/next.js fix/sitemap-force-dynamic	Change
0.pack gzip	1.57 MB	1.57 MB	⚠️ +1.07 kB
index.pack gzip	106 kB	106 kB	⚠️ +885 B
Overall change	1.67 MB	1.67 MB	⚠️ +1.96 kB

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Commit: f245d2a

[ijjk]

Tests Passed