Mongoose 6.8.4发布

fix(collection): handle creating model when connection disconnected with bufferCommands = false #12889
fix(populate): merge instead of overwrite when match is on _id #12891
fix: add guard to stop loadClass copying Document if Document is used as base of loaded class (same hack as implemented for Model already) #12820 sgpinkus
fix(types): correctly infer types on document arrays #12884 #12882 JavaScriptBach
fix(types): added omit for ArraySubdocument type in LeanType declaration #12903 piyushk96
fix(types): add returnDocument type safety #12906 AbdelrahmanHafez
docs(typescript): add notes about virtual context to Mongoose 6 migration and TypeScript virtuals docs #12912 #12806
docs(schematypes): removed dead link and fixed formatting #12897 #12885 lpizzinidev
docs: fix link to lean api #12910 manniL
docs: list all possible strings for schema.pre in one place #12868
docs: add list of known incompatible npm packages #12892 IslandRhythms