Word by word this is exactly my experience. Code I was forced to merge was working only on that day in a very limited set of tests. That's not 'working' in my definition. First next feature we needed to add and code would break all over the place. First I was politely telling it can't work because of this and that, then I was fixing the code silently so we don't all hit the roadblock the next day, then I was trying to discuss that we can't really work that way, then I walked away. All in a span of 30 days.