Hundreds of dogs and their owners marched through central London in a mass "Wooferendum March" to call for a second vote on Brexit.
The MPs voted in favour of the Queen's Speech by 323 votes to 309 with a majority of 14.
Before it backtracked, Twitter had said Thursday that the change was meant to protect victims of harassment who wanted to filter out abusive messages but feared that the act of blocking a user would prompt retaliation.