'then' in PrimsaPromise returns false

[hayes]

Bug description

Some libraries use 'then' in x as part of their detection for promise-like/thenable objects.

The way prisma client builds its fluent APIs with proxies causes this to fail.

How to reproduce

console.log('then' in prisma.someModel.findUnique({ where: { id: 1 }))

console.log(typeof prisma.someModel.findUnique({ where: { id: 1 })).then === 'function')

This is basically because ownKeys here

prisma/packages/client/src/runtime/core/model/applyFluent.ts

Line 106 in 3855438

const ownKeys = getOwnKeys(client, dmmfModelName)

does not include then (or other promise methods)

Expected behavior

'then' in promise should return true.

Prisma information

Environment & setup

• OS:
• Database:
• Node.js version:

Prisma Version

prisma                  : 3.10.0
@prisma/client          : 3.10.0
Current platform        : darwin
Query Engine (Node-API) : libquery-engine 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at ../../node_modules/.pnpm/@prisma+engines@3.10.0-50.73e60b76d394f8d37d8ebd1f8918c79029f0db86/node_modules/@prisma/engines/libquery_engine-darwin.dylib.node)
Migration Engine        : migration-engine-cli 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at ../../node_modules/.pnpm/@prisma+engines@3.10.0-50.73e60b76d394f8d37d8ebd1f8918c79029f0db86/node_modules/@prisma/engines/migration-engine-darwin)
Introspection Engine    : introspection-core 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at ../../node_modules/.pnpm/@prisma+engines@3.10.0-50.73e60b76d394f8d37d8ebd1f8918c79029f0db86/node_modules/@prisma/engines/introspection-engine-darwin)
Format Binary           : prisma-fmt 73e60b76d394f8d37d8ebd1f8918c79029f0db86 (at ../../node_modules/.pnpm/@prisma+engines@3.10.0-50.73e60b76d394f8d37d8ebd1f8918c79029f0db86/node_modules/@prisma/engines/prisma-fmt-darwin)
Default Engines Hash    : 73e60b76d394f8d37d8ebd1f8918c79029f0db86
Studio                  : 0.458.0