fix: reset prefix after skipping over it in sp-skip-to-symbol-1

smartparens.el

@@ -7517,7 +7517,8 @@ Examples:
                (goto-char (,comment-bound (sp-get-comment-bounds)))
                (unless ,eob-test (,forward-fn 1)))
            (unless ,eob-test
-             (,forward-fn (max (length prefix) 1))))))))
+             (,forward-fn (max (length prefix) 1))))
+         (setq prefix nil)))))
 
 (defun sp-skip-forward-to-symbol (&optional stop-at-string stop-after-string stop-inside-string)
   "Skip whitespace and comments moving forward.

test/smartparens-framework-test.el

@@ -32,6 +32,15 @@ delimiter."
     (insert "|")
     (should (equal (buffer-string) "foo|\n;; \"bar\"\nbaz"))))
 
+(ert-deftest sp-test-sp-skip-backward-to-symbol-reset-prefix ()
+  "If the first skip was a prefix skip, we need to reset the
+prefix after jumping over it, otherwise each successive skip
+would move (length prefix) characters"
+  (let ((sp-sexp-prefix '((emacs-lisp-mode regexp "\\(?:aaa\\)"))))
+    (sp-test-with-temp-elisp-buffer "foo bar aaa|(baz)"
+      (sp-skip-backward-to-symbol)
+      (sp-buffer-equals "foo bar| aaa(baz)"))))
+
 (ert-deftest sp-test-looking-back ()
   (sp-test-with-temp-elisp-buffer "foo \\|\\ bar"
     (should (sp--looking-back "\\\\+"))