Hybrid naming convention for mutated mericlonesss

[SouthPark]

Is there a naming convention for naming mericloned hybrids where the new mericlone developed a mutation?

For example, an orchid that somebody at one stage decided to give a mericloned hybrid this following designation:

Rlc. Memoria Helen Brown 'Sweet Afton' var. Splash.

The original plant hybrid cultivar is 'Sweet Afton', and mutation certainly did eventually set in from some mericloning processes. I do notice some orchid sellers appear to be knowingly or even unknowingly sell either "remakes" or even mutant versions of so-called 'Sweet Afton'. Of course, a "remake" doesn't count as 'Sweet Afton'. A mutation really doesn't count as well.

I have a plant (with its flower shown in the snippet attachment) that is a mutant mericlone of 'Sweet Afton'. The lip features is just like the original 'Sweet Afton'. The difference is that the petals of my particular mutant has splashes of colour on the tips/edges - unlike the original plant - where the original doesn't have the colouring on the leaf tips. Apart from that - the lip features of my particular mutated form aligns extremely well with the original - lip rim features, colour pattern etc.

So, just very interested to see whether the name that I see on the internet ... ie. Rlc. Memoria Helen Brown 'Sweet Afton' var. Splash is using an incorrect naming convention. And, if it's the wrong naming convention, then was wondering if there is (or should be) a naming convention for mutated hybrids.

Originally, I had this post within the 'what is a clone?' thread, but thought I'd transfer it here, as it departs from the topic of 'what is a clone?'.

Is there a convention for mutations such as Rlc. Memoria Helen Brown 'Sweet Afton' m. Splash? With 'm.' being a codeword for 'mutation/mutant'.

Or would it be acceptable to just go with Rlc. Memoria Helen Brown 'Sweet Afton' var. Splash? With 'var.' normally linked to species (not hybrids) as Roberta correctly mentioned.

Or is there a convention we can follow already?

Otherwise, since DNA has changed, then would it be necessary for somebody to give a new cultivar name altogether, like Rlc. Memoria Helen Brown 'Sweet Afton Splash'?