Fix projectile-purge-file-from-cache serializing stale data

The function was serializing the original file list to disk instead of
the updated list with the file removed.  This meant purged files would
reappear in the cache after restarting Emacs.

1 files changed, 3 insertions, 3 deletions

diff --git a/projectile.el b/projectile.el
index f6b7e63..bbcddcf 100644
--- a/projectile.el
+++ b/projectile.el
@@ -1159,10 +1159,10 @@ The cache is created both in memory and on the hard drive."
   (let* ((project-root (projectile-project-root))
          (project-cache (gethash project-root projectile-projects-cache)))
     (if (projectile-file-cached-p file project-root)
-        (progn
-          (puthash project-root (remove file project-cache) projectile-projects-cache)
+        (let ((new-cache (remove file project-cache)))
+          (puthash project-root new-cache projectile-projects-cache)
           (when (projectile-persistent-cache-p)
-            (projectile-serialize project-cache (projectile-project-cache-file project-root)))
+            (projectile-serialize new-cache (projectile-project-cache-file project-root)))
           (when projectile-verbose
             (message "%s removed from cache" file)))
       (error "%s is not in the cache" file))))