Related space logo not respecting the on/off settings at the space and global settings level

If you have the following setup: Confluence 3.5.11, TEAMCAL 1.2.4 (and higher?), and have never configured a "Global Logo" at https://<confluence base url>/admin/configuregloballogo.action and then you perform the following actions:

Step 1: Turn on global logo option
Step 2: Upload custom logo
Step 3: Turn off global logo

Result: calendar macros (weekly list mode is what i saw) for TEAMCAL now show the global logo uploaded in step 2 as icon next to events on events, except external subscriptions. User found it before I did and to fix I did:

Step 4: turn on global logo
Step 5: click the "Reset logo to default" link at https://<confluence base url>/admin/configuregloballogo.action
Step 6: turn off global logo

Result: back to default atlassian icon on the cal macros.

I assume that the effect should be that when "Global Logo" is set to "Off" at https://<confluence base url>/admin/configuregloballogo.action that the logo is not displayed ANYWHERE. So, filing this as a TEAMCAL bug as this project should check to see if logo is on or off.

But if your response is going to be "Well, the logo was uploaded, so the problem is not in the plugin, but in Confluence code!" – then this is a bug in Confluence as there's no way to "fix" this behavior without re-enabling the Global Logo, removing the logo, and turning off the logo again.