CLSA-2022-1671124332 vim: Fix of CVE-2022-3591

CVE-2022-3591: disallow navigating to a dummy buffer...

CVE-2022-3591

creationtimestamp| type| source ---|---|--- 2022-12-02 20:37:34+00:00| seen| https://t.me/cibsecurity/53828...