This might be in 1.8 and 1.9, but I have't tested it and I need sleep. I do know that it works properly in 1.7.10.

Totally did not forget about this bug >.>

Thanks for making an issue, will release a fix just before the 1.12 port

Fixed in 1.9.3 for 1.11.2 https://minecraft.curseforge.com/projects/tails/files/2445515

Should have a final release for 1.10.2 "soon" as well and will include this fix