Hello again :-)
Using map <leader><leader>f <Plug>(snipe-f) as keybinding
Pressing c<leader><leader>f<esc> should stay in normal mode instead of going in insert mode.
And if I'm not mistaken, if you go through with the jump, you undo, then you try to do the same jump with the same letter but you cancel, everything is deleted until the first occurrence of the letter. For example
"random piece of text"
c<leader><leader>fe
shows
"random piacs of tdxt"
You go through with d, so you end up with
"xt"
You undo. You press c<leader><leader>f<esc>
and you get
"ece of text"