0.5.0 's bug issue

[Huaranyue]

I used to report this on CurseForge, but I didn't describe it clearly enough, so I'll go into more full detail now .
The first issue is that the use of shields in the offhand will not be detected, and stamina will only be consumed when the shield is placed in the main hand.
The second issue is that flight detection using elytra is not flexible enough. If I use the fireworks to change the flight status, I can keep flying even after I run out of stamina.Similarly, elytra using some mods cannot be identified, even if they operate in a way close to the original minecraft , such as L_Ender 's Cataclysm's elytra chest and Icarus Wings' elytraand, so on.
These are all.
Thanks for your work