I know for certain the US flag does this, but does it carry the same definition regarding the Australian Flag:

A flag flown or displayed up side down signifies:

• A sign of distress (rooted from maritime or military traditions)
• Political Protest (like distrust towards government or authority)
• It’s to protest over government policies (flex that in Canberra)
• It’s a naval SOS signal when a ship is under attack or sinking
• It’s also a SOS signal when military outposts are under attack
• Only displayed or shown during extreme peril & danger

A flag flown or displayed in reverse signifies:

• Moving forward and refusing to retreat (it has battlefield origins)
• Mainly exclusive to law enforcement (police) or the military (ADF)
• It’s placed in reverse on combat uniforms as a symbol to charge forward
• The patch is placed on the right shoulder on soldiers (like ADF personnel)
• Right side placement is only common in police cruisers / military vehicles
• In aviation: the flag on aircraft typically flies alongside wind direction