Only in 3rd person, you can swap the animation of any held item with another by interrupting the swapping animation. Such as replacing the shoveling animation with that of a hammer.
To reproduce:
- Hold the tool that you want to keep the animation of, preferably something with a quick animation such as the machete or hammer.
- Swap to the tool you wish to actually use, such as a shovel or axe.
- Immediately after or at the same time, interrupt this animation by mounting a vehicle, sitting on furniture, or any other way that stops the animation.
- Dismount the vehicle or stand up from furniture
Animation returns to normal if you start any other animation, such as eating food.
https://youtu.be/oVuqD_Zqavw

Only in 3rd person, you can swap the animation of any held item with another by interrupting the swapping animation. Such as replacing the shoveling animation with that of a hammer.
To reproduce:
Animation returns to normal if you start any other animation, such as eating food.
https://youtu.be/oVuqD_Zqavw