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When hitting C-j in the minibuffer while executing helm-find-files and no match is possible, helm creates a new buffer with the name of the completion. E.g. I do M-x helm-find-files, type foo there is only the default match:
Now I hi C-j and a new buffer gets created, named foo. How can I disable this behavior?
I don't know why you hit C-j on no match in the first place. C-j is used for previewing the content of a file and there is no needs to preview a non-exist file. But to kill the buffer, simply hit C-j again, for example,
C-x C-f non-existent-filename C-j C-j
the first C-j opens a buffer named non-existent-filename and the second kills it. I learnt this by reading the documentation. To read the documentation of helm-find-files, open a helm-find-files session then hit C-h m (this is shown in the mode line), or M-x helm-documentation.
fop C-j instead of foo C-j; the main problem is that when this new buffer gets created projectile creates a new cache entry for this and I get them when doing a helm-projectile-find-file.
helm-projectile should no longer find file with persistent action, only preview it.
Apr 17 '17 at 18:22