#858 add changelog

[martinjrobins]

Description

add changelog for 858

Fixes #858

Type of change

• Bug fix (non-breaking change which fixes an issue)

Key checklist:

• No style issues: $ flake8
• All tests pass: $ python run-tests.py --unit
• The documentation builds: $ cd docs and then $ make clean; make html

You can run all three at once, using $ python run-tests.py --quick.

Further checks:

• Code is commented, particularly in hard-to-understand areas
• Tests added that prove fix is effective or that feature works

[codecov]

Codecov Report

Merging #896 into develop will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop     #896   +/-   ##
========================================
  Coverage    97.82%   97.82%           
========================================
  Files          207      207           
  Lines        10737    10737           
========================================
  Hits         10503    10503           
  Misses         234      234           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 90684ac...9cbaee8. Read the comment docs.