Fixing an evar_map bug revealed by commit 603b66f81 on unification flags.
Fixing an evar_map bug revealed by commit 603b66f81 on unification flags.

This fixes current failure of RelationAlgebra.

silene/coq,maximedenes/coq,jpdeplaix/coq,william-lawvere/coq,herbelin/github-coq,Lionel-Rieg/coq,gares/coq,william-lawvere/coq,barras/coq,Matafou/coq,ppedrot/coq,ejgallego/coq,letouzey/coq-wip,Matafou/coq,coq/coq,maximedenes/coq,gmalecha/coq,asr/coq,amintimany/coq,Matafou/coq,SkySkimmer/coq,Zimmi48/coq,letouzey/coq-wip,shindere/coq,ppedrot/coq,gmalecha/coq,shindere/coq,maximedenes/coq,coq/coq,SkySkimmer/coq,8l/coq,asr/coq,gares/coq,pirapira/coq2rust,Zimmi48/coq,ejgallego/coq,aspiwack/coq,ppedrot/coq,mattam82/coq,letouzey/coq-wip,amintimany/coq,amintimany/coq,8l/coq,TOSPIO/coq,maximedenes/coq,JasonGross/coq,coq/coq,silene/coq,8l/coq,jpdeplaix/coq,TheTypoMaster/coq,SkySkimmer/coq,Lionel-Rieg/coq,Ptival/coq,william-lawvere/coq,Zimmi48/coq,ale-f/coq,gmalecha/coq,mlasson/coq,letouzey/coq-wip,TheTypoMaster/coq,Zimmi48/coq,herbelin/github-coq,TOSPIO/coq,barras/coq,jpdeplaix/coq,Lionel-Rieg/coq,gares/coq,aspiwack/coq,TheTypoMaster/coq,ppedrot/coq,coq/coq,asr/coq,barras/coq,Ptival/coq,ale-f/coq,herbelin/github-coq,ale-f/coq,JasonGross/coq,mattam82/coq,gares/coq,letouzey/coq-wip,ppedrot/coq,ejgallego/coq,silene/coq,Ptival/coq,ejgallego/coq,shindere/coq,mlasson/coq,mlasson/coq,maximedenes/coq,gares/coq,aspiwack/coq,JasonGross/coq,SkySkimmer/coq,pirapira/coq2rust,mattam82/coq,pirapira/coq2rust,JasonGross/coq,TOSPIO/coq