sprintf (uid_buf, "/%u", h.data->uid);
mutt_hcache_store (hc, uid_buf, ctx->hdrs[msgno], idata->uid_validity,
&imap_hcache_keylen);
sprintf (uid_buf, "/%u", h.data->uid);
mutt_hcache_store (hc, uid_buf, ctx->hdrs[msgno], idata->uid_validity,
&imap_hcache_keylen);