The tag alias #74480 arm_fins -> arm_fin has been approved.
Reason: Simple meld of the singular and plural forms of the same thing.
The reason for aliasing the plural to the singular is because other similar tags do it this way (Example: tail_fins is aliased to tail_fin)
EDIT: The tag alias arm_fins -> arm_fin (forum #433871) has been approved by @spe.
Updated by auto moderator