The item attribute is still on your character because it doesn't have time to load and tell the item to stop, theres a command to fix this but I don't know it, sorry
Get a marco mod, and bind a key to the command /bukkit:kill. Then when you join creative, spam that key, and you will die again, but try pressing respawn and it may work. Wait there, I think there is another command you can bind that can help, I will try and find it.
Have u done a heap of research on google? Sorry, IDK much bout mods, because I never Mod my minecraft (although I do use snapshots and all of that, but that really isn't modding)
Markcatwither i have the same problem but i made it so i can atleast move for 5 blocks. I had a friend murder me and i did /bukkit:kill it killed me the effect was removed but if i sprint i crash due to the items crashing ability being speed 100000000 x 5
Here's my idea, get an app for ipad called minechat. Then you can use commands even if you're dead! Maybe that will work? Type /bukkit:kill to kill yourself
Also, if you don't have a device that can have minechat (not sure about kindle/other devices, but I know idevices work) have a friend use it for you. Yes you do have to login on the app. So don't ask anyone you don't fully trust with your username and password...
http://www.mineverse.com/threads/player-reset-list-creative.20753/#post-200339 READ MY POST THROUGHTLY Hope I helped a little bit
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