Prevent cursor return to start

[Krenichniy]

Hello, I'm using your labriry to create custom calendar and when i click on a field with mask on any place of mask it returns my cursor to start. I'd like to prevent this behaviour, for input field i use div with attribute contenteditable. Howewer, i've fixed this issue when click on a field with already written date by setting unmasked value of Imask instatnce. Help me please to resolve this bug.