Error if initially disabled

[ilativity]

In case I put [disabled]="true" then a following error message is occur. Please take a look

core.js:4352 ERROR TypeError: Cannot read property 'isDragging' of undefined
at PinchZoomComponent.get isDragging [as isDragging] (ngx-pinch-zoom.js:911)
at PinchZoomComponent_Template (ngx-pinch-zoom.js:998)
at executeTemplate (core.js:7451)
at refreshView (core.js:7320)
at refreshComponent (core.js:8467)
at refreshChildComponents (core.js:7126)
at refreshView (core.js:7370)
at refreshComponent (core.js:8467)
at refreshChildComponents (core.js:7126)
at refreshView (core.js:7370)
at refreshEmbeddedViews (core.js:8421)
at refreshView (core.js:7344)
at refreshEmbeddedViews (core.js:8421)
at refreshView (core.js:7344)
at refreshComponent (core.js:8467)

ngx-pinch-zoom/src/app/pinch-zoom/pinch-zoom.component.ts

Line 113 in 8adb728

if (this.properties['disabled']) {