TypeError: Cannot read property 'unsubscribe' of undefined when destroying Update Markers component
Sentry Issue: FRONT-WW
TypeError: Cannot read property 'unsubscribe' of undefined
at ngOnDestroy (./src/app/modules/groups/sidebar-markers/sidebar-markers.component.ts:77:24)
at checkSidebarVisibility (./src/app/common/layout/sidebar/markers.component.ts:57:34)
at observe (./src/app/common/layout/sidebar/markers.component.ts:37:12)
at next (./src/app/services/session.ts:21:19)
at logout (./src/app/services/session.ts:81:26)
...
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