Merge branch 'issue/fieldmatvec_enum_compare' into 'develop'

Fixed enum comparison

See merge request !84
4 jobs for develop in 31 minutes and 39 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #8448
debian:10 clang-6-libcpp-17

00:31:39

passed #8447
debian:10 gcc-8-17

00:20:58

passed #8449
debian:9 gcc-6-14

00:22:28

passed #8450
ubuntu:18.04 clang-6-17

00:31:03