Smooth behavior not working anymore

[NicolasR]

jquery-confirm version:
v3.3.4

I'm submitting a ... (check one with "x")
[X] bug report
[ ] feature request
[ ] support request

Current behavior:
If you change modal height, smooth behavior is not working since PR 404

Expected behavior:
Smooth behavior working

Steps to reproduce:

Related code:

// Commented out to prevent scroll to top when updating the content
                        // (for example when using ajax in forms in content)
                        // that.$contentPane.css({
                        //     'height': contentHeight
                        // }).scrollTop(0);

Bug is here. You shouldn't comment the whole line. Only remove scrollTop and keep smooth resize.

Other information:
I will submit a PR for this.