Block a user
Remove corresponding new form on #destroy
Disable drag handles of ancestors on form open
Deduplicate drag&drop js from Unit/Quantity index
Update UI to disallow rebasing/reparenting to descendants
Fix Unit/Quantity table row indentation on index/new/edit
Change Unit seeds problem with variable names containing not allowed characters
Change Unit seeds problem with variable names containing not allowed characters
Deduplicate drag&drop js from Unit/Quantity index