TypeError: o.ɵnov(…).$any is not a function

My Angular/Meteor App stopped using form data and the JavaScript console was logging lots of “ERROR TypeError: o.ɵnov(…).$any is not a function” messages as soon as I touched form fields bound with two-way data binding – the [()] syntax.

The issue is actually described in Issue 2118 on the ng-bootstrap GitHub, but it took me a while to figure it out.

The bottom line is that something broke with @angular 5.2.0. The last version that works for me is 5.1.3.