If you place a slab over one block of water and then till the ground around it the slab pulls you in when you get too close it will also sometimes not allow you to walk over tilled dirt that is around the water source.
This video shows the issueΒ https://www.youtube.com/watch?v=WMi0yLsnG9U&feature=youtu.be
Thank you for your report!
We're actually already tracking this issue in MC-166386, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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