Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  8e0be3ee2a02c281d173f75d8e4803e2df15b65b

When executing an action on a post, just replace the .flow-post,
not the whole .flow-post-container.

Bug: 58747
Change-Id: I724a0358d60e458337a8dac32469007ee5d806d8