Cannot set a logo in a skin in an xwiki document anymore

How to reproduce:

• create a skin in a wiki page, with baseskin flamingo
• set this skin as current skin of the wiki in preferences
• upload a logo to this skin page
• set the "logo" property of the skin to the uploaded page

Expected result:

• this logo should replace the standard XWiki logo on the wiki in question

Actual result:

• the logo of the wiki is still the XWiki standard logo

Note that this was working fine in 7.4.2 and is not working anymore in 7.4.3. Thus my bet is on the fix for XWIKI-13345 that could have introduced this issue.