Price slider doesn't update its margins during moves

[Traumflug]

Steps to reproduce:

• Standard installation with demo products.
• Remove these overrides from the theme to use the actual module code:
  • themes/community-theme-default/modules/blocklayered/blocklayered.tpl
  • themes/community-theme-default/js/modules/blocklayered/blocklayered.js
• View a category page to see layered navigation.
• Move one of the price slider knobs.

Expected result:

• Upper and lower value change according to the knob position immediately.

Actual result:

• Values don't change until the knob gets released.

Hint: using these community theme overrides, this feature works. It should be possible to learn there how it works.