Merge branch 'issue/global_refine_adopted_grid' into 'develop'

global refinement should only be performed if flag INIT_MESH is set

See merge request !55
4 jobs for develop in 25 minutes and 19 seconds (queued for 16 minutes and 6 seconds)
Status Job ID Name Coverage
  Test
passed #7209
debian:10 clang-6-libcpp-17

00:20:26

passed #7208
debian:10 gcc-8-17

00:16:31

passed #7210
debian:9 gcc-6-14

00:13:14

passed #7211
ubuntu:18.04 clang-6-17

00:18:10