bug fix: honor invalidation commits while in shutdown mode.
bug fix: honor invalidation commits while in shutdown mode.

michael-berlin/vitess,fengshao0907/vitess,dumbunny/vitess,enisoc/vitess,tjyang/vitess,tirsen/vitess,skyportsystems/vitess,HubSpot/vitess,yaoshengzhe/vitess,CERN-Stage-3/vitess,mattharden/vitess,davygeek/vitess,cloudbearings/vitess,alainjobart/vitess,yaoshengzhe/vitess,cloudbearings/vitess,pivanof/vitess,ptomasroos/vitess,pivanof/vitess,fengshao0907/vitess,SDHM/vitess,mlc0202/vitess,HeisenbergUncertain/vitess,dumbunny/vitess,michael-berlin/vitess,atyenoria/vitess,yaoshengzhe/vitess,alainjobart/vitess,tinyspeck/vitess,cgvarela/vitess,apmichaud/vitess-apm,netroby/vitess,yangzhongj/vitess,dcadevil/vitess,yangzhongj/vitess,michael-berlin/vitess,cgvarela/vitess,vitessio/vitess,anusornc/vitess,kmiku7/vitess-annotated,mapbased/vitess,dumbunny/vitess,kuipertan/vitess,tirsen/vitess,kmiku7/vitess-annotated,AndyDiamondstein/vitess,tirsen/vitess,guokeno0/vitess,tirsen/vitess,ptomasroos/vitess,mapbased/vitess,sougou/vitess,yaoshengzhe/vitess,erzel/vitess,sougou/vitess,tinyspeck/vitess,kuipertan/vitess,anusornc/vitess,aaijazi/vitess,nurblieh/vitess,netroby/vitess,aaijazi/vitess,ngaut/vitess,tirsen/vitess,SDHM/vitess,vitessio/vitess,nurblieh/vitess,nurblieh/vitess,kuipertan/vitess,HubSpot/vitess,michael-berlin/vitess,yangzhongj/vitess,xgwubin/vitess,AndyDiamondstein/vitess,mattharden/vitess,AndyDiamondstein/vitess,enisoc/vitess,cgvarela/vitess,dcadevil/vitess,vitessio/vitess,HubSpot/vitess,kmiku7/vitess-annotated,mahak/vitess,cgvarela/vitess,cgvarela/vitess,yangzhongj/vitess,vitessio/vitess,mattharden/vitess,enisoc/vitess,yaoshengzhe/vitess,HeisenbergUncertain/vitess,HubSpot/vitess,mapbased/vitess,anusornc/vitess,kmiku7/vitess-annotated,rnavarro/vitess,dumbunny/vitess,mapbased/vitess,CERN-Stage-3/vitess,CERN-Stage-3/vitess,davygeek/vitess,aaijazi/vitess,guokeno0/vitess,guokeno0/vitess,yangzhongj/vitess,rnavarro/vitess,xgwubin/vitess,tirsen/vitess,yangzhongj/vitess,cloudbearings/vitess,guokeno0/vitess,netroby/vitess,yaoshengzhe/vitess,applift/vitess,sougou/vitess,enisoc/vitess,erzel/vitess,pivanof/vitess,vitessio/vitess,pivanof/vitess,netroby/vitess,nurblieh/vitess,yaoshengzhe/vitess,skyportsystems/vitess,anusornc/vitess,pivanof/vitess,AndyDiamondstein/vitess,netroby/vitess,applift/vitess,erzel/vitess,applift/vitess,cloudbearings/vitess,tinyspeck/vitess,fengshao0907/vitess,sougou/vitess,tjyang/vitess,mlc0202/vitess,rnavarro/vitess,ngaut/vitess,apmichaud/vitess-apm,kmiku7/vitess-annotated,dumbunny/vitess,kmiku7/vitess-annotated,dumbunny/vitess,cloudbearings/vitess,aaijazi/vitess,alainjobart/vitess,skyportsystems/vitess,skyportsystems/vitess,mapbased/vitess,mattharden/vitess,skyportsystems/vitess,ptomasroos/vitess,pivanof/vitess,nurblieh/vitess,SDHM/vitess,mattharden/vitess,tjyang/vitess,vitessio/vitess,applift/vitess,erzel/vitess,dcadevil/vitess,kuipertan/vitess,davygeek/vitess,mapbased/vitess,netroby/vitess,fengshao0907/vitess,erzel/vitess,xgwubin/vitess,tirsen/vitess,dumbunny/vitess,ngaut/vitess,erzel/vitess,applift/vitess,tinyspeck/vitess,rnavarro/vitess,tjyang/vitess,netroby/vitess,atyenoria/vitess,mahak/vitess,apmichaud/vitess-apm,kuipertan/vitess,davygeek/vitess,skyportsystems/vitess,fengshao0907/vitess,xgwubin/vitess,mahak/vitess,rnavarro/vitess,aaijazi/vitess,cloudbearings/vitess,anusornc/vitess,SDHM/vitess,mattharden/vitess,tjyang/vitess,mahak/vitess,ptomasroos/vitess,michael-berlin/vitess,alainjobart/vitess,applift/vitess,HubSpot/vitess,sougou/vitess,dumbunny/vitess,yaoshengzhe/vitess,tinyspeck/vitess,alainjobart/vitess,yaoshengzhe/vitess,HeisenbergUncertain/vitess,dcadevil/vitess,applift/vitess,xgwubin/vitess,kmiku7/vitess-annotated,tirsen/vitess,rnavarro/vitess,applift/vitess,cloudbearings/vitess,erzel/vitess,cgvarela/vitess,skyportsystems/vitess,yangzhongj/vitess,anusornc/vitess,mlc0202/vitess,mattharden/vitess,tjyang/vitess,alainjobart/vitess,rnavarro/vitess,atyenoria/vitess,michael-berlin/vitess,anusornc/vitess,davygeek/vitess,mattharden/vitess,sougou/vitess,aaijazi/vitess,mapbased/vitess,anusornc/vitess,applift/vitess,HubSpot/vitess,nurblieh/vitess,atyenoria/vitess,dumbunny/vitess,dcadevil/vitess,ptomasroos/vitess,tinyspeck/vitess,guokeno0/vitess,mahak/vitess,vitessio/vitess,alainjobart/vitess,mlc0202/vitess,xgwubin/vitess,mlc0202/vitess,davygeek/vitess,atyenoria/vitess,ptomasroos/vitess,sougou/vitess,mapbased/vitess,skyportsystems/vitess,xgwubin/vitess,michael-berlin/vitess,mapbased/vitess,ngaut/vitess,atyenoria/vitess,kuipertan/vitess,CERN-Stage-3/vitess,vitessio/vitess,CERN-Stage-3/vitess,HeisenbergUncertain/vitess,dumbunny/vitess,mlc0202/vitess,pivanof/vitess,cgvarela/vitess,enisoc/vitess,aaijazi/vitess,apmichaud/vitess-apm,apmichaud/vitess-apm,tjyang/vitess,rnavarro/vitess,kmiku7/vitess-annotated,AndyDiamondstein/vitess,enisoc/vitess,mahak/vitess,AndyDiamondstein/vitess,rnavarro/vitess,AndyDiamondstein/vitess,dcadevil/vitess,guokeno0/vitess,SDHM/vitess,kuipertan/vitess,fengshao0907/vitess,aaijazi/vitess,yangzhongj/vitess,guokeno0/vitess,fengshao0907/vitess,pivanof/vitess,ngaut/vitess,kmiku7/vitess-annota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