Missing tag for release: 2.15.0.1

[JamesKoenig]

tag is mentioned in 7e972cadfe9745db47a0e625c20096ec854da7f8

Merge tag '2.15.0.1'

and on https://hackage.haskell.org/package/QuickCheck

Source repo head: git clone https://github.com/nick8325/quickcheck this: git clone https://github.com/nick8325/quickcheck (tag 2.15.0.1)

But appears to have been deleted or removed at some point