blockmodel: fix bug with vertex movements

6 jobs for master in 5405 minutes and 43 seconds (queued for 3 seconds)
Status Name Job ID Coverage
  Test
failed job_clang_amd64 #1919
amd64

15:25:41

failed job_clang_amd64_nosh #1923
amd64

14:27:04

failed job_clang_py2_amd64 #1921
amd64

14:47:23

failed job_gcc_amd64 #1918
amd64

15:42:00

failed job_gcc_amd64_nosh #1922
amd64

14:37:53

failed job_gcc_py2_amd64 #1920
amd64

15:05:40

 
Name Stage Failure
failed
job_clang_py2_amd64 Test There is an unknown failure, please try again
Doctest summary
===============
966 tests
13 failures in tests
0 failures in setup code
0 failures in cleanup code
build finished with problems, 160 warnings.

ERROR: Build failed: exit status 1
failed
job_gcc_amd64_nosh Test There is an unknown failure, please try again
  warnings.warn("tight_layout : falling back to Agg renderer")
/usr/lib/python3.5/site-packages/matplotlib/pyplot.py:516: RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (`matplotlib.pyplot.figure`) are retained until explicitly closed and may consume too much memory. (To control this warning, see the rcParam `figure.max_open_warning`).
max_open_warning, RuntimeWarning)
/usr/lib/python3.5/site-packages/matplotlib/tight_layout.py:222: UserWarning: tight_layout : falling back to Agg renderer
warnings.warn("tight_layout : falling back to Agg renderer")
/usr/lib/python3.5/site-packages/matplotlib/pyplot.py:516: RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (`matplotlib.pyplot.figure`) are retained until explicitly closed and may consume too much memory. (To control this warning, see the rcParam `figure.max_open_warning`).
max_open_warning, RuntimeWarning)

ERROR: Build failed: exit status 1
failed
job_clang_amd64_nosh Test There is an unknown failure, please try again
  max_open_warning, RuntimeWarning)
/usr/lib/python3.5/site-packages/matplotlib/tight_layout.py:222: UserWarning: tight_layout : falling back to Agg renderer
warnings.warn("tight_layout : falling back to Agg renderer")
/usr/lib/python3.5/site-packages/matplotlib/pyplot.py:516: RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (`matplotlib.pyplot.figure`) are retained until explicitly closed and may consume too much memory. (To control this warning, see the rcParam `figure.max_open_warning`).
max_open_warning, RuntimeWarning)
/usr/lib/python3.5/site-packages/matplotlib/tight_layout.py:222: UserWarning: tight_layout : falling back to Agg renderer
warnings.warn("tight_layout : falling back to Agg renderer")

ERROR: Build failed: exit status 1
failed
job_gcc_amd64 Test There is an unknown failure, please try again
  966 tests
11 failures in tests
0 failures in setup code
0 failures in cleanup code
build finished with problems, 154 warnings.
/usr/lib/python3.5/site-packages/matplotlib/pyplot.py:516: RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (`matplotlib.pyplot.figure`) are retained until explicitly closed and may consume too much memory. (To control this warning, see the rcParam `figure.max_open_warning`).
max_open_warning, RuntimeWarning)

ERROR: Build failed: exit status 1
failed
job_clang_amd64 Test There is an unknown failure, please try again
  966 tests
11 failures in tests
0 failures in setup code
0 failures in cleanup code
build finished with problems, 154 warnings.
/usr/lib/python3.5/site-packages/matplotlib/pyplot.py:516: RuntimeWarning: More than 20 figures have been opened. Figures created through the pyplot interface (`matplotlib.pyplot.figure`) are retained until explicitly closed and may consume too much memory. (To control this warning, see the rcParam `figure.max_open_warning`).
max_open_warning, RuntimeWarning)

ERROR: Build failed: exit status 1
failed
job_gcc_py2_amd64 Test There is an unknown failure, please try again
Doctest summary
===============
966 tests
13 failures in tests
0 failures in setup code
0 failures in cleanup code
build finished with problems, 160 warnings.

ERROR: Build failed: exit status 1