Background -- I've been replacing all the switches in my house with casetta smart switches. On 3-ways, I've been abandoning one of the switches and replacing with the lutron remote controls. The original/builder/owner of this house was an electrician and wired it himself, so he did a few odd/shortcut things.
Today I came across a strangely wired 3-way that I'm not sure what to do with. The existing 3-way switch feeding the load had a jumper between one of the travelers and the load (not sure what the point of this would be). On the source side switch, when I connect either of the travelers to the line, both travelers (on both switch sides, with the wires disconnected) become energized. I'm not sure what to make of that.
On the source side, I've wired the casetta with the line, one of the travelers, neutral and ground, leaving one traveler energized but abandoned/capped. The load switch/fixture works regardless of whether I nut together the load with either of the travelers or all 3 together. Does what I've done/any of this sound unsafe? Really not sure what to make of the extra hot traveler.
this is the supply box - the 2 blacks in the middle are the line. Black and red above/below are from the same cable and are the assumed travelers.
this is the box supplying the fixture. bottom black is the load, other 2 are the travelers.