Searches are a problem that can be solved afterwards through less clusterfucky methods. Normalizing the tag names, such that wildcard searches work, is one. Adding an umbrella tag is another.
NWF_Renim said:
-1. They're either way too obviously the parent character tag, or the tag exists merely to represent a known persona of the parent character tag. Trying to separate these seems to be rather absurd to propose.
I don't disagree, except on the saberface point. Lily, Alter and MHXA are more than just "personas", they're independent characters on their own right. MHX is, ironically, not quite so.
Visually it seems rather obvious one is a "younger" version of the other, so this proposal seems odd.
Visually yes, but there's an entire plotline about how JASL came to be and how she's separate from the big Jeannes. This plot is why she's often paired with Jack and NR, incidentally. It's just as different as mini Medu is from big Medu. I'm trying to be as consistent as possible here.
I don't really have a strong opinion on this, but her physical body is Rin's from my understanding and visually it seems pretty clear of it being a derivative.
Similar as the previous, though she is more different than Ishtar in comparison to the original. Although blonde hair isn't unnatural for Rin (see: Toosaka_Rin Fate/Extra blonde_hair), though that is also apparently a relative of Rin's (with the same name?) and not the same character the Toosaka_Rin tag is intended for.
Visually yes, but they're still different characters with different personalities and interactions. It boils down to whether you include non-visual elements in the distinction.
On the other hand, unlike, say, JASL, Ishtar's Rin-ness has been used in works for example pairing her with Emiya, so dunno.