Fix Bug in taxonomy tree reference widget drupal 7

Avg Bid (EUR)
Project Budget (EUR)
€30 - €250

Project Description:
We have a little bug in the taxonomy term reference tree widget combined with the professional theme.

After clearing caches everything runs fine for a couple of page loads, after the widget flippers and expands and collaps several times uncontrolled:

Skills required:
PHP, Software Architecture
About the employer:
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€ 250
in 10 days
€ 200
in 5 days
€ 150
in 5 days
€ 200
in 1 days
€ 300
in 1 days
€ 250
in 1 days