multiallelic splitting of with ALT asterisk

[dwaggott]

What's the expected behavior when applying norm -m- to split multiple alleles when there is a * ALT?

After filtering against gnomad to get rare variants I'm left with a large number of high AF variants with * ALTs.

My understanding is that an asterisk is used to represent a deleted allele when combined with another variant. An asterisk could represent multiple underlying deletions at different positions. After splitting I'm tempted to just delete them.