Selection replacement loses mask layout when using keepCharacterPositions

[CastenHave]

🐞 bug report

Is this a regression?

No

Description

The mask format is lost when a part of the text is selected and new numbers are typed in. This happens when keepCharacterPositions is set to true together with showMaskTyped set to true. The expected result is that the numbers that are set to placeholderCharacter.

🔬 Minimal Reproduction

See the mask demo of keepCharacterPositions.
https://jsdaddy.github.io/ngx-mask/#7
Fill in 111-222-333, select 222 in the middle and start type a 4. The input now loses the given mask format. The expected result would be 111-4__-333 but now it shows 111--433.

🌍 Your Environment

Angular Version:
"@angular/core": "^19.2.1",

[emelamud]

Having the same problem, selecting several characters and pressing DEL breaks the mask, see example here -- https://stackblitz.com/edit/stackblitz-starters-kms52rxa?file=src%2Fmain.ts

Angular version is 19.0.6, ngx-mask version is 19.0.6