Contagion spreads curses?

I noticed that if i use enfeeble on a mob that has contagion on it and if it dies it will not only spread the contagion around it but also spread the curse that's on the mob to others.

This happens without having the spread curse support gem.

Is this working as intended or?

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Contagion also spreads curses similarly to the damage over time debuff regardless of whether or not Decaying Hex is linked to the curse. This is particularly synergistic with Despair or Temporal Chains.

https://www.poe2wiki.net/wiki/Contagion

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MagosX#1099 wrote:

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Contagion also spreads curses similarly to the damage over time debuff regardless of whether or not Decaying Hex is linked to the curse. This is particularly synergistic with Despair or Temporal Chains.

https://www.poe2wiki.net/wiki/Contagion

thanks!