Fieldmask with dashes and optional numbers reproduces not wanted dashes when fillingin th eform

[arnevm123]

🐞 bug report

Is this a regression?

I don't think so

Description

A clear and concise description of the problem...

When making a simple fieldmask containing optional numbers and a separating char ( '/' or '-') the separating char gets duplicated sometimes when filling in the input field.

🔬 Minimal Reproduction

https://stackblitz.com/edit/angular-ivy-mask-qd8dzq?file=src%2Fapp%2Fapp.component.html

🔥 Exception or Error

🌍 Your Environment

Angular Version:

@angular/animations 11.0.2

@angular/common 11.0.2

@angular/compiler 11.0.2

@angular/core 11.0.2

@angular/forms 11.0.2

@angular/platform-browser 11.0.2

@angular/platform-browser-dynamic 11.0.2

@angular/router 11.0.2

ngx-mask 11.1.0

rxjs 6.6.3

tslib 2.0.3

zone.js 0.11.3

Anything else relevant?

[NepipenkoIgor]

@arnevm123 Hi. Thank you that using ngx-mask. Please use ngx-mask >=14.2.2. Pay attention that perhaps you need migrate to ng12+
Also please check https://stackblitz.com/edit/angular-material-13-starter-x1xj4z-99bgwi?file=src%2Fapp%2Fapp.component.html,src%2Fapp%2Fapp.module.ts,src%2Fapp%2Fapp.component.ts