After upgrading to CF10, the selected row of my cfgrid is no longer passed on form post.

I have a cfform which contains a cfgrid and prior to the 9 to 10 update, upon submission of the cfform, the selected row of the grid was passed/posted to my form action page as:

__CFGRID__gridForm__renewalGrid

This contained all the data from the selected row, I.e.:

__CFGRID__COLUMN__=PROJECTID; __CFGRID__DATA__=T01081002AP; __CFGRID__COLUMN__=APPLICATIONS; __CFGRID__DATA__=PQFD; __CFGRID__COLUMN__=OWNERUID; __CFGRID__DATA__=HT2008; __CFGRID__COLUMN__=TEAM; __CFGRID__DATA__=Roberts; __CFGRID__COLUMN__=ROLE; __CFGRID__DATA__=AASBOAPMX; __CFGRID__COLUMN__=REGION; __CFGRID__DATA__=Southwest; __CFGRID__COLUMN__=EXISTING; __CFGRID__DATA__=K8045F; __CFGRID__COLUMN__=SOD; __CFGRID__DATA__=0; __CFGRID__COLUMN__=INITIALEMAILDATE; __CFGRID__DATA__=01/28/2013; __CFGRID__COLUMN__=MESSAGEDATE; __CFGRID__DATA__=; __CFGRID__COLUMN__=SECONDEMAILDATE; __CFGRID__DATA__=; __CFGRID__COLUMN__=ESCALATIONDATE; __CFGRID__DATA__=; __CFGRID__COLUMN__=COMPLETEDBY; __CFGRID__DATA__=TH2878; __CFGRID__COLUMN__=COMPLETIONDATE; __CFGRID__DATA__=02/06/2013; __CFGRID__COLUMN__=MONTHPULLED; __CFGRID__DATA__=Jan2013; __CFGRID__COLUMN__=TOTALITEMS; __CFGRID__DATA__=2; __CFGRID__COLUMN__=RELIEVINGPSA; __CFGRID__DATA__=; __CFGRID__COLUMN__=MODIFIEDBYTS; __CFGRID__DATA__=02/06/2013; __CFGRID__COLUMN__=MODIFIEDBY; __CFGRID__DATA__=T228Y8; __CFGRID__COLUMN__=CREATEDBY; __CFGRID__DATA__=KV3M36; __CFGRID__COLUMN__=CREATEDTS; __CFGRID__DATA__=01/28/2013; __CFGRID__COLUMN__=NEWSA; __CFGRID__DATA__=; __CFGRID__COLUMN__=DELEGATESTATUSNOTE; __CFGRID__DATA__=Access; __CFGRID__COLUMN__=STATUS; __CFGRID__DATA__=Completed; __CFGRID__COLUMN__=DATATYPE; __CFGRID__DATA__=Appl New

After upgrading to CF10, and with no changes to the code, performing this same process, __CFGRID__gridForm__renewalGrid is still passed in the form scope to my action page, but now it is empty.

I have not yet uninstalled CF9, so I brought it up on a different port, and I can run the same code as CF9 or CF10 and watch... in 9 the selected row is passed, in 10 it is empty.

Is this a bug? Is there a work around? Please help.