[Ivy] ASSERTION ERROR: Should be run in update mode

🐞 bug report

Affected Package

The issue is caused by package @angular/core (Ivy)

Is this a regression?

Yes, works in non-Ivy.

Description

I suspect this happens as a result of having an Input property that is set directly (isExpanded="true") instead of using a binding ([isExpanded]="true"), and having the property setter call changeDetectorRef.detectChanges(). It should be noted that this works in non-ivy.

🔬 Minimal Reproduction

https://github.com/fr0/angular-test/tree/ivy

Clone repo
git checkout ivy
npm install
npm start
Open http://localhost:4200 in Chrome
View browser console log

🔥 Exception or Error


core.js:5829 ERROR Error: ASSERTION ERROR: Should be run in update mode
    at throwError (core.js:1164)
    at assertEqual (core.js:1123)
    at refreshView (core.js:12425)
    at detectChangesInternal (core.js:13907)
    at ViewRef.detectChanges (core.js:15373)
    at ExpandableIfComponent.set isExpanded [as isExpanded] (expandable-if.component.ts:60)
    at setInputsFromAttrs (core.js:13579)
    at postProcessDirective (core.js:13335)
    at instantiateAllDirectives (core.js:13234)
    at createDirectivesInstances (core.js:12618)

🌍 Your Environment

Angular Version:




Angular CLI: 9.0.0-next.5
Node: 12.6.0
OS: darwin x64
Angular: 9.0.0-next.7
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.900.0-next.5
@angular-devkit/build-angular     0.900.0-next.5
@angular-devkit/build-optimizer   0.900.0-next.5
@angular-devkit/build-webpack     0.900.0-next.5
@angular-devkit/core              9.0.0-next.5
@angular-devkit/schematics        9.0.0-next.5
@angular/cli                      9.0.0-next.5
@ngtools/webpack                  9.0.0-next.5
@schematics/angular               9.0.0-next.5
@schematics/update                0.900.0-next.5
ng-packagr                        5.5.1
rxjs                              6.5.3
typescript                        3.5.3
webpack                           4.40.2