Fix handling of side-effects in case of `Opaque side-effects as well.
Fix handling of side-effects in case of `Opaque side-effects as well.

Lionel-Rieg/coq,gares/coq,amintimany/coq,JasonGross/coq,letouzey/coq-wip,Matafou/coq,mattam82/coq,ppedrot/coq,coq/coq,silene/coq,herbelin/github-coq,amintimany/coq,maximedenes/coq,william-lawvere/coq,JasonGross/coq,Lionel-Rieg/coq,Zimmi48/coq,Zimmi48/coq,coq/coq,coq/coq,SkySkimmer/coq,Matafou/coq,SkySkimmer/coq,william-lawvere/coq,maximedenes/coq,maximedenes/coq,ejgallego/coq,silene/coq,coq/coq,Ptival/coq,ppedrot/coq,Matafou/coq,herbelin/github-coq,ppedrot/coq,Lionel-Rieg/coq,ppedrot/coq,SkySkimmer/coq,letouzey/coq-wip,mattam82/coq,SkySkimmer/coq,gares/coq,Ptival/coq,letouzey/coq-wip,maximedenes/coq,ejgallego/coq,JasonGross/coq,Zimmi48/coq,gares/coq,letouzey/coq-wip,amintimany/coq,Zimmi48/coq,gares/coq,Ptival/coq,letouzey/coq-wip,maximedenes/coq,ejgallego/coq,ppedrot/coq,william-lawvere/coq,mattam82/coq,JasonGross/coq,herbelin/github-coq,gares/coq,silene/coq,ejgallego/coq