Werk #11757: Fix broken bookmark snapin

Component	User interface
Title	Fix broken bookmark snapin
Date	Dec 8, 2020
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.1.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 2.0.0b2 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

The error "TypeError: '<' not supported between instances of 'NoneType' and 'str'" could appear when using the bookmark snapin of the sidebar.

To the list of all Werks