fix bad import

packages/common/src/main.ts

@@ -216,7 +216,7 @@ export { Slicer, SlicedProps } from './common/slicing-utils'
 
 export { EventMutation, applyMutationToEventStore } from './structs/event-mutation'
 export { Constraint, ConstraintInput, AllowFunc } from './structs/constraint'
-export { isPropsValid, isInteractionValid } from './validation'
+export { isPropsValid, isInteractionValid, isDateSelectionValid } from './validation'
 
 export { requestJson } from './util/requestJson'
 

packages/interaction/src/interactions/DateSelecting.ts

@@ -7,7 +7,7 @@ import {
 import { __assign } from 'tslib'
 import { HitDragging } from './HitDragging'
 import { FeaturefulElementDragging } from '../dnd/FeaturefulElementDragging'
-import { isDateSelectionValid } from '@fullcalendar/common/tsc/validation'
+import { isDateSelectionValid } from '@fullcalendar/common'
 
 /*
 Tracks when the user selects a portion of time of a component,