[Gameplay] Deathfire touch instances being overridden by new instance that expires sooner.

No video but easy to reproduce. While using Rumble in practice tool I noticed that his E DFT procs (four seconds) are overridden by the Q DFT proc (one second). There's a noticeable change in damage if one were to E the dummy, wait for all DFT procs to apply, then Q. Damage is much lower when using Q immediately after using E.

If I'm not mistaken, this is something that should have been fixed in the 7.9 patch.

Steps: 1. Pick Rumble, use Deathfire touch keystone, and go into practice tool. 2. Set up target dummy, advance to level 2 for Q and E. Don't take any items. 3. Fire a harpoon (E) at dummy, then immediately use flamespitter (Q). Note the damage. 4. Wait for damage on dummy to reset. 5. Fire a harpoon (E) at dummy, wait for the ticks to end (or even just 1-2 seconds), then use flamespitter (Q). Note the increase in damage.

Bug is able to be reproduced every time, with consistent damage numbers as well.