Well its there for way over a month now (and just got awareness since a month)
There are bugs where Sombra can throw her TL into wall all over the Place in almost every map.
Well there are around 7 different Sombra exploits (even more game-breaking once then sitting in the Payload) some are here since way longer then I can think of they just don’t get the awareness they should get.
The problem is that they not even mentioned it in the Known Issue list of 1.28.
You could use Dragon strike or any kind of Grav ability Zarya’s or Orisa’s (not in all direction for Rialto you could pull her out of the top) and there are some places you can sometimes hit her arm.
That would cause multiple other issues for TL normally they would fix it by placing you to the nearest save location (next to the payload in most cases).
And for anyone intrested in other Sombra bugs and Exploits: