patch 8.1.2125: fnamemodify() fails when repeating :e Commit: https://github.com/vim/vim/commit/b189295b72030f00c45c30d3daecf85d457221f8 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Oct 8 23:26:50 2019 +0200 patch 8.1.2125: fnamemodify() fails when repeating :e Problem: Fnamemodify() fails when repeating :e. Solution: Do not go before the tail. (Rob Pilling, closes https://github.com/vim/vim/issues/5024)

--- a/src/filepath.c
+++ b/src/filepath.c
@@ -563,7 +563,11 @@ repeat:
 	}
 	else				// :r
 	{
-	    if (s > tail)	// remove one extension
+	    char_u *limit = *fnamep;
+
+	    if (limit < tail)
+		limit = tail;
+	    if (s > limit)	// remove one extension
 		*fnamelen = (int)(s - *fnamep);
 	}
 	*usedlen += 2;