Repair assert failure in tuple-chain-moving logic (introduced by yours truly, I'm afraid).
Repair assert failure in tuple-chain-moving logic (introduced by yours
truly, I'm afraid).

kaknikhil/gpdb,snaga/postgres-xl,rvs/gpdb,yazun/postgres-xl,pavanvd/postgres-xl,chrishajas/gpdb,rubikloud/gpdb,lintzc/gpdb,adam8157/gpdb,xuegang/gpdb,greenplum-db/gpdb,randomtask1155/gpdb,postmind-net/postgres-xl,lpetrov-pivotal/gpdb,rubikloud/gpdb,xinzweb/gpdb,lpetrov-pivotal/gpdb,0x0FFF/gpdb,atris/gpdb,edespino/gpdb,randomtask1155/gpdb,zaksoup/gpdb,lintzc/gpdb,zeroae/postgres-xl,xuegang/gpdb,rvs/gpdb,0x0FFF/gpdb,lintzc/gpdb,lpetrov-pivotal/gpdb,arcivanov/postgres-xl,techdragon/Postgres-XL,Quikling/gpdb,kaknikhil/gpdb,xinzweb/gpdb,janebeckman/gpdb,royc1/gpdb,pavanvd/postgres-xl,royc1/gpdb,zeroae/postgres-xl,50wu/gpdb,janebeckman/gpdb,kmjungersen/PostgresXL,CraigHarris/gpdb,ahachete/gpdb,randomtask1155/gpdb,ashwinstar/gpdb,ashwinstar/gpdb,atris/gpdb,lintzc/gpdb,Chibin/gpdb,zaksoup/gpdb,techdragon/Postgres-XL,ovr/postgres-xl,lintzc/gpdb,yuanzhao/gpdb,royc1/gpdb,lpetrov-pivotal/gpdb,cjcjameson/gpdb,lintzc/gpdb,edespino/gpdb,adam8157/gpdb,adam8157/gpdb,jmcatamney/gpdb,rvs/gpdb,kmjungersen/PostgresXL,50wu/gpdb,kmjungersen/PostgresXL,CraigHarris/gpdb,rubikloud/gpdb,xuegang/gpdb,pavanvd/postgres-xl,atris/gpdb,50wu/gpdb,cjcjameson/gpdb,postmind-net/postgres-xl,0x0FFF/gpdb,lintzc/gpdb,kmjungersen/PostgresXL,xuegang/gpdb,xinzweb/gpdb,yuanzhao/gpdb,50wu/gpdb,xinzweb/gpdb,royc1/gpdb,foyzur/gpdb,janebeckman/gpdb,tangp3/gpdb,lintzc/gpdb,postmind-net/postgres-xl,foyzur/gpdb,randomtask1155/gpdb,atris/gpdb,yuanzhao/gpdb,snaga/postgres-xl,Postgres-XL/Postgres-XL,janebeckman/gpdb,CraigHarris/gpdb,randomtask1155/gpdb,janebeckman/gpdb,0x0FFF/gpdb,CraigHarris/gpdb,zaksoup/gpdb,Postgres-XL/Postgres-XL,jmcatamney/gpdb,adam8157/gpdb,Quikling/gpdb,Chibin/gpdb,rubikloud/gpdb,lisakowen/gpdb,ashwinstar/gpdb,atris/gpdb,cjcjameson/gpdb,rvs/gpdb,foyzur/gpdb,Chibin/gpdb,greenplum-db/gpdb,jmcatamney/gpdb,kaknikhil/gpdb,tpostgres-projects/tPostgres,yuanzhao/gpdb,CraigHarris/gpdb,yuanzhao/gpdb,lpetrov-pivotal/gpdb,janebeckman/gpdb,randomtask1155/gpdb,pavanvd/postgres-xl,50wu/gpdb,ashwinstar/gpdb,lisakowen/gpdb,ahachete/gpdb,Postgres-XL/Postgres-XL,chrishajas/gpdb,Quikling/gpdb,atris/gpdb,adam8157/gpdb,xuegang/gpdb,zeroae/postgres-xl,lpetrov-pivotal/gpdb,foyzur/gpdb,oberstet/postgres-xl,Chibin/gpdb,lisakowen/gpdb,kaknikhil/gpdb,xuegang/gpdb,Chibin/gpdb,Quikling/gpdb,tangp3/gpdb,50wu/gpdb,Quikling/gpdb,yuanzhao/gpdb,lpetrov-pivotal/gpdb,ovr/postgres-xl,zeroae/postgres-xl,techdragon/Postgres-XL,jmcatamney/gpdb,rvs/gpdb,greenplum-db/gpdb,arcivanov/postgres-xl,atris/gpdb,postmind-net/postgres-xl,tangp3/gpdb,cjcjameson/gpdb,edespino/gpdb,snaga/postgres-xl,yuanzhao/gpdb,0x0FFF/gpdb,snaga/postgres-xl,royc1/gpdb,foyzur/gpdb,xinzweb/gpdb,ovr/postgres-xl,edespino/gpdb,zaksoup/gpdb,Chibin/gpdb,xuegang/gpdb,tangp3/gpdb,kaknikhil/gpdb,chrishajas/gpdb,techdragon/Postgres-XL,janebeckman/gpdb,yazun/postgres-xl,edespino/gpdb,xinzweb/gpdb,zaksoup/gpdb,royc1/gpdb,Quikling/gpdb,oberstet/postgres-xl,arcivanov/postgres-xl,Quikling/gpdb,Chibin/gpdb,edespino/gpdb,edespino/gpdb,foyzur/gpdb,greenplum-db/gpdb,yuanzhao/gpdb,Quikling/gpdb,CraigHarris/gpdb,ashwinstar/gpdb,rvs/gpdb,oberstet/postgres-xl,lisakowen/gpdb,xuegang/gpdb,cjcjameson/gpdb,rubikloud/gpdb,ahachete/gpdb,tpostgres-projects/tPostgres,tangp3/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,cjcjameson/gpdb,atris/gpdb,Quikling/gpdb,chrishajas/gpdb,lisakowen/gpdb,zaksoup/gpdb,0x0FFF/gpdb,lisakowen/gpdb,cjcjameson/gpdb,rvs/gpdb,greenplum-db/gpdb,rvs/gpdb,edespino/gpdb,50wu/gpdb,foyzur/gpdb,jmcatamney/gpdb,chrishajas/gpdb,royc1/gpdb,lintzc/gpdb,zaksoup/gpdb,jmcatamney/gpdb,chrishajas/gpdb,yuanzhao/gpdb,adam8157/gpdb,kaknikhil/gpdb,adam8157/gpdb,chrishajas/gpdb,xinzweb/gpdb,ashwinstar/gpdb,yazun/postgres-xl,ahachete/gpdb,ashwinstar/gpdb,kaknikhil/gpdb,cjcjameson/gpdb,zeroae/postgres-xl,janebeckman/gpdb,arcivanov/postgres-xl,tpostgres-projects/tPostgres,yazun/postgres-xl,cjcjameson/gpdb,Quikling/gpdb,CraigHarris/gpdb,lisakowen/gpdb,Chibin/gpdb,ahachete/gpdb,edespino/gpdb,randomtask1155/gpdb,tangp3/gpdb,arcivanov/postgres-xl,jmcatamney/gpdb,edespino/gpdb,snaga/postgres-xl,tangp3/gpdb,ahachete/gpdb,arcivanov/postgres-xl,tpostgres-projects/tPostgres,greenplum-db/gpdb,yuanzhao/gpdb,0x0FFF/gpdb,rubikloud/gpdb,zaksoup/gpdb,chrishajas/gpdb,pavanvd/postgres-xl,rvs/gpdb,royc1/gpdb,ashwinstar/gpdb,50wu/gpdb,lisakowen/gpdb,jmcatamney/gpdb,tangp3/gpdb,lpetrov-pivotal/gpdb,ahachete/gpdb,postmind-net/postgres-xl,janebeckman/gpdb,CraigHarris/gpdb,ovr/postgres-xl,greenplum-db/gpdb,rvs/gpdb,Postgres-XL/Postgres-XL,adam8157/gpdb,janebeckman/gpdb,tpostgres-projects/tPostgres,randomtask1155/gpdb,Chibin/gpdb,rubikloud/gpdb,foyzur/gpdb,Postgres-XL/Postgres-XL,rubikloud/gpdb,kaknikhil/gpdb,kmjungersen/PostgresXL,oberstet/postgres-xl,0x0FFF/gpdb,CraigHarris/gpdb,kaknikhil/gpdb,xinzweb/gpdb,Chibin/gpdb,xuegang/gpdb,techdragon/Postgres-XL,yazun/postgres-xl,oberstet/postgres-xl,ovr/postgres-xl,ahachete/gpdb,greenplum-db/gpdb