[CLI] --split-tags doesn't work with --sheet-type horizontal/vertical

Before filling a bug report on Github, I want to confirm if this is an intended behaviour or not.

With the CLI (or the Spritesheet Export windows as well), split-tags seems to only work with the rows or columns parameters for the type of sheet to export.
The expected behavior, as I would understand it, would be to produce one horizontal or vertical spritesheet for each Tag.

Am I wrong ?