Merge branch 'bug_fix' into 'operator_spectra'

Changes in BlockDiagonalOperator and LogRGSpace

See merge request !344
10 jobs for operator_spectra in 8 minutes and 55 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build Docker
passed #933403
build_docker_from_cache

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  Test
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test_mpi

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test_serial

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82.0%
 
  Demo Runs
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run_bernoulli

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run_curve_fitting

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run_getting_started_1

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run_getting_started_2

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run_getting_started_3

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run_ipynb

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passed #933412
run_plotting_test

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