documents with select false field which is an object(not mixed type) doesn't update without markModified, even though fields were explicitly selected when querying for document

[r3wt]

It happens on multiple models for us, so i felt like maybe i should report it. I apologize if its a known issue, but my time is scant, far too scant at this particular moment to search through issues to see if its a duplicate.

const fooSchema =  new Schema({
	foo: { type: String },
	sensitive_field:{
		select: false,
		type:{
			field1: { type: String, default: null },
			field2: { type: String, default: null },
			field3: { type: String, enum:['inactive','active','cancelled','grace','suspended'], default:'inactive' },
			field4: { type: String, enum:[ 'active','none','expired','expires_soon' ], default:'none' },
			field5: { type: Boolean, default: false }
		}
	},
});

This is roughly what one such field looks like, as shown here sensitive_field. without calling doc.markModified('sensitive_field'); document is not updated with changes to this field.

[vkarpov15]

That's because your schema as written defines sensitive_field as a Mixed type. We unfortunately don't support defining type as a POJO. You would need to do this:

const fooSchema =  new Schema({
	foo: { type: String },
	sensitive_field:{
		select: false,
		type: new Schema({
			field1: { type: String, default: null },
			field2: { type: String, default: null },
			field3: { type: String, enum:['inactive','active','cancelled','grace','suspended'], default:'inactive' },
			field4: { type: String, enum:[ 'active','none','expired','expires_soon' ], default:'none' },
			field5: { type: Boolean, default: false }
		}
	},
});

Re: #7181, this behavior is risky and counter intuitive, and we'll change it going forward.

[r3wt]

@vkarpov15 thanks for the info, the workaround you provided is sufficient. I appreciate you helping me