I’m using Camunda 7.5.0 and I am 99% sure I am impacted by this same bug.
I could not wrap my head around the multiple entries in my database that I saw today but after reading this topic it starts to make sense. All but the very last ge_bytearray entry is a loose reference that is not linked to any hi_varinst entry. The variable names have unixtime included, so they are clearly copied and not newly created by the front-end . (Also in that case, they would have a hi_varinst entry or at least the revision number should be 1 up).
