Welcome to a World with multiple Phabricator instances cloning each other's repositories!
# @epriestley merges [[ https://secure.phabricator.com/rPHU0135e57181a91e1f342338d62782754e0bd31e59 | this patch ]] here mentioning T1191
# https://phabricator.wikimedia.org/T1191 gets an action: "**Diffusion** added a commit: **[[ https://phabricator.wikimedia.org/rPHUTIL0135e57181a91e1f342338d62782754e0bd31e59 | rPHUTIL0135e57181a9: Assume utf8mb4 support ]]**"
Needless to say, T1191 here and the same task number in #Wikimedia are totally unrelated. Yet both get the same ping. Of course, Remarkup has no idea and cannot do better...