Exception thrown during task editing

[rootcause]

Occurred: 1 times
URL: https://bryntum.com/products/gantt/examples/gantt-taskboard/
Open in Rootcause

An error was logged by RootCause:

Stack trace:
throwUnknownIdentifier at https://bryntum.com/products/gantt/build/thin/chunks/chunk-DCNVFOZY.js:1354:11
EngineTransaction.onReadIdentifier at https://bryntum.com/products/gantt/build/thin/chunks/chunk-DCNVFOZY.js:2168:34
EngineTransaction.calculateTransitionsStackGen at https://bryntum.com/products/gantt/build/thin/chunks/chunk-DCNVFOZY.js:2294:56
Transaction.next at <anonymous>:null:null
EngineTransaction.calculateTransitions at https://bryntum.com/products/gantt/build/thin/chunks/chunk-DCNVFOZY.js:2207:43
Transaction.next at <anonymous>:null:null
runGeneratorAsyncWithEffect at https://bryntum.com/products/gantt/build/thin/chunks/chunk-DCNVFOZY.js:1191:28
? at https://bryntum.com/products/gantt/build/thin/chunks/chunk-DCNVFOZY.js:2082:20

[canonic-epicure]

This is easy to reproduce in the Gantt advanced example:

• edit the "Setup load balancer" task
• switch to "Resources" tab
• double click the "Lee" resource name
• double click the "Macy" resource name
• press "Cancel"
• observe the exception:

Identifier.js:279 Uncaught (in promise) Error: Unknown identifier ModelClass-3.$.effectiveCalendar
    at throwUnknownIdentifier (Identifier.js:279:63)
    at EngineTransaction.onReadIdentifier (Transaction.js:626:17)
    at EngineTransaction.calculateTransitionsStackGen (Transaction.js:770:57)
    at calculateTransitionsStackGen.next (<anonymous>)
    at EngineTransaction.calculateTransitions (Transaction.js:669:25)
    at calculateTransitions.next (<anonymous>)
    at runGeneratorAsyncWithEffect (Calculation.js:151:29)
    at Transaction.js:526:20