complain only if really necessary + version bump

Author: Andrea Guzzo

perl/p5-Shardcache-Client-Fast/Fast.xs

@@ -368,7 +368,7 @@ shardcache_client_get_multi(c, keys, results = &PL_sv_undef)
                 items_array[num_items] = NULL; // null-terminate it
 
                 int rc = shardcache_client_get_multi(c, items_array);
-                if (rc == 0) {
+                if (rc >= 0) { // 0 means OK, 1 means that some keys failed and some succeeded
                     AV *out_array;
                     if (!SvROK(results) || SvTYPE(SvRV(results)) != SVt_PVAV) {
                         out_array = newAV();
@@ -385,7 +385,7 @@ shardcache_client_get_multi(c, keys, results = &PL_sv_undef)
                         if (items_array[i]->data)
                             item_sv = newSVpv(items_array[i]->data, items_array[i]->dlen);
 
-                        if (!av_store(out_array, i, item_sv))
+                        if (!av_store(out_array, i, item_sv) && item_sv != &PL_sv_undef)
                             SvREFCNT_dec(item_sv);
 
                         shc_multi_item_destroy(items_array[i]);

perl/p5-Shardcache-Client-Fast/lib/Shardcache/Client/Fast.pm

@@ -46,7 +46,7 @@ our @EXPORT = qw(
     
 );
 
-our $VERSION = '0.12';
+our $VERSION = '0.13';
 
 sub AUTOLOAD {
     # This AUTOLOAD is used to 'autoload' constants from the constant()