How to reproduce

• Create a CMIS folder with a valid configuration
• The CMIS tree is displayed (OK)
• Edit the CMIS folder and force an invalid configuration (bad url or wrong login/password for example)
• The CMIS tree is always displayed correctly, even if I refresh the explorer tree

Note that if I create a CMIS folder with an invalid configuration, then I edit the CMIS folder and fix the configuration, the CMIS tree is correctly refreshed.

It seems that there is a cache which is not invalidated when editing the CMIS properties.