Merge branch 'issue-239-preserve-rowspan' into 'master'

resolves #239 duplicate columns with rowspan when a table is chunked

Closes #239

See merge request !134
1 job for master in 4 minutes and 49 seconds (queued for 3 minutes and 10 seconds)
Status Job ID Name Coverage
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failed #1016
npm-test

00:04:49

 
Name Stage Failure
failed
npm-test Build
Snapshots:   2 failed, 194 passed, 196 total
Time: 256.707 s
Ran all test suites.
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ERROR: Job failed: exit status 1