When using the default resourceField
described here https://bryntum.com/products/calendar/docs/guide/Calendar/customization/eventedit#default-fields it doesn't seem like it's possible to set this to not auto select the first resource.
eventEditFeature: {
items: {
...
resourceField: {
type: "combo",
label: "Dispatch",
multiSelect: true,
value: [],
weight: 700,
},
I can get around it via beforeEventEditShow but feels like this may be a bug
beforeEventEditShow: (props: any) => {
props.editor.widgetMap.resourceField.value = [];
},