Key alternation for previous_tab does not work

[hongquan]

Is this a reproducible bug?

• I confirm this is a reproducible bug, not a feature request, idea, question, contribution proposal, or direction check.

Current behavior

I added this in the config:

[keys]
new_tab = ["prefix+c", "f2"]
next_tab = ["prefix+n", "f4"]
previous_tab = ["f3", "prefix+p"]

[ui]
prompt_new_tab_name = false

But when pressing "F3", Herdr does not switch to the previous tab.
The "F2", "F4" still work as expected.
By the way, although prompt_new_tab_name = false, Herdr still asks for tab name when I create new tab.

Expected behavior

Pressing "F3" will make switch to previous tab, like "prefix + b".

Reproduction

Just add config like above.

Impact

I have to keep pressing F4 to go to next tab, next tab, making one round to go to "previous tab".

Environment

• Herdr version: 0.7.4
• Update channel (stable or preview): stable
• Operating system: Ubuntu 26.04
• Terminal: Ghostty
• Shell, if relevant: Fish
• Relevant config, if any: Pasted above