Add test for possible bug encountered in #14480
Add test for possible bug encountered in #14480

SkySkimmer/coq,coq/coq,ejgallego/coq,ejgallego/coq,coq/coq,coq/coq,SkySkimmer/coq,Zimmi48/coq,ejgallego/coq,SkySkimmer/coq,SkySkimmer/coq,ejgallego/coq,coq/coq,Zimmi48/coq,Zimmi48/coq,Zimmi48/coq