System Information
Operating system: windows 10 64
Graphics card: AMD radeon

Blender Version
Broken: 2.80
(example: 2.80, edbf15d3c044, blender2.8, 2018-11-28,

Short description of error

when i apply environment texture in world settings and the choose any image of any size (200 KB - 7 MB) and then the bug starts when i rotate with mouse my model got copied over and over in background texture(world texture) and it happened every time

Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).

go to rendered view by clicking Z
step 1 add any mesh object
step 2 got to world settings chose use nodes
step 3 choose glossy surface
step 4 in color select environment texture and choose any image and rotate view

@Brecht Van Lommel (brecht) Ok sorry. But isn't that a big distraction for the devs if they have to do all the triaging on their own? Could one help there externally?

Well, you generally get artworks :-) if you don't use the background shader:

should be disabled here against abuse as in the node editor:

@Benjamin (51423benam), you can help by verifying if you can reproduce the issue, asking for more information if something is unclear, etc.

Just setting the priority is for developers, since that is also usually the time when it gets assigned to a specific developer, and means we know we don't need more information from the user.

@Brecht Van Lommel (brecht) I think we should disable the shaders the user isn't supposed to use, like @Martin Capitanio (capnm) suggested.