Ender Tank Dupe and fluid losing

[cadurf]

Ender tank duping in placing, wasting all fluid when removed from original place and sometimes re-filling with fluid when placed again in same place

[Krutoy242]

Video demonstration of fluid change and dupe:

javaw_TOHRIzT7q6.mp4

[Test-Account666]

I just forked the project and fixed this.
I'd appreciate some feedback :)

https://github.com/Test-Account666/EnderStorage-continuation/