Unable to delete Microschemas

[deckdom]

Gentics Mesh Version, operating system, or hardware.

• v0.10.4

Operating System

• Linux
• MacOSX
• Windows

JVM

• Open JDK 1.8.0_151

Problem

There's a prevention from deleting a microschema if it is still in use in a node. However, this seems like it's not updating properly, as when I delete all nodes with such a microschema, I still get an error when attempting to delete it:

{
	"i18nParameters": [
		"8c5cee4596f744469cee4596f7244689"
	],
	"properties": {
	},
	"type": "generic_error",
	"message": "There are micronodes which use the microschema 8c5cee4596f744469cee4596f7244689. Delete the nodes which use the micronodes first."
}

I also noticed that sometimes a restart can help, but not always.

Reproducer

• Create a Microschema and a Schema which has a reference to the new microschema
• Create a new node with the newly created schema
• Delete the node
• Attempt to delete the microschema
• You get an error as described above

Expected behaviour and actual behaviour

That it's possible to delete it without having to restart the server

[Jotschi]

@SiNEXiST It would be really helpful if you could add a Unit test for that usecase.

You could actually extend the MicroschemaEndpointTest#testDeleteByUUIDWhileInUse testcase.

[Jotschi]

Test is now green since we are now correctly deleting micronode fields and micronode list fields.