Does not work in strict mode

[all-iver]

It looks like mobx-form-store is making changes to observables outside of actions. If this is not an easy fix, perhaps there should be a note in the docs that strict mode is not supported? Here's what I'm seeing:

[mobx] Invariant failed: Since strict-mode is enabled, changing observed observable values outside actions is not allowed. Please wrap the code in an `action` if this change is intended. Tried to modify: FormStore@2402.isSaving
    at invariant (mobx.module.js:2327)
    at fail (mobx.module.js:2322)
    at checkIfStateModificationsAreAllowed (mobx.module.js:2891)
    at ObservableValue../node_modules/mobx/lib/mobx.module.js.ObservableValue.prepareNewValue (mobx.module.js:796)
    at setPropertyValue (mobx.module.js:1673)
    at FormStore.set [as isSaving] (mobx.module.js:1641)
    at FormStore.$IfStatement_7 (FormStore.js:783)
    at FormStore.<anonymous> (FormStore.js:837)
    at boundThen (asSchemaField.js:162)
    at new Promise (<anonymous>)
    at FormStore.js:735
    at <anonymous>

[alexhisen]

Yeah, that's true. It only wraps multiple changes in action to keep them atomic.