Cannot save updates on M2A child items.

[jorgefelico]

Preflight Checklist

• I have completed all Troubleshooting Steps.
• I'm on the latest version of Directus.
• There's no other issue that already describes my problem.

Describe the Bug

When I create a collection that has child collections via M2A relationship, the child collections save initially without any issues , however when I go edit the child collection within the parent, The updates I make are not reflected on screen nor on the database. There's also a console error displaying.

To Reproduce

Create two collections, make one collection have a Many to Any relationship with the other collection. Create a parent entry and add a child item of the other collection. Once the M2A item has been saved on the parent collection, go back and try to edit it.

Errors Shown

vendor.9c15ff54.js:5 TypeError: Cannot create property 'content' on string '17'
    at Proxy.A (index.3a276397.entry.js:43:69915)
    at onUpdate:modelValue (index.3a276397.entry.js:43:72473)
    at Nh (vendor.9c15ff54.js:5:656)
    at $1 (vendor.9c15ff54.js:5:735)
    at cB (vendor.9c15ff54.js:2:21133)
    at Proxy.v (index.3a276397.entry.js:43:62759)
    at HO.a.onUpdate:modelValue.t.<computed>.t.<computed> (index.3a276397.entry.js:43:65437)
    at Nh (vendor.9c15ff54.js:5:656)
    at $1 (vendor.9c15ff54.js:5:735)
    at cB (vendor.9c15ff54.js:2:21133)

What version of Directus are you using?

9.5.0

What version of Node.js are you using?

14.18.3

What database are you using?

MySQL 5.7.36

What browser are you using?

Chrome

What operating system are you using?

macOS & Windows 10

How are you deploying Directus?

running locally

[jorgefelico]

Figured out it was an issue with the Sort field on the parent collection.