When relation is morphMany, `withCount` would cause where bindings mistake

[mitoop]

• Laravel Version: 5.7.13
• PHP Version: 7.2.11
• Database Driver & Version: Mysql 8.0.12

Description:

When use withCount under the relation morphMany and when withCount method call before select method, It will lead that the where bindings will make a mistake.

Steps To Reproduce:

ModelA::withCount('relation')->where(''user_id", 12)->select(['fields'])->get() or paginate().

It will cause where bindings make a mistake. And when select method call before the withCount method, It will be OK. Like this :

ModelA::select(['fields'])->withCount('relation')->where(''user_id", 12)->get() or paginate().

[driesvints]

Looks like the same as #26623?

[staudenmeir]

You always have to call withCount() after select().

See #24797 and laravel/docs#4404.

[driesvints]

@staudenmeir thanks for making me aware. I'll try to resend that docs PR with better wording.