Fixes issue with 1 more try than maxtries

src/CacheManager.Core/BaseCacheManager.GetOrAdd.cs

@@ -128,7 +128,6 @@ private bool TryGetOrAddInternal(string key, string region, Func<string, string,
             var tries = 0;
             do
             {
-                tries++;
                 item = GetCacheItemInternal(key, region);
                 if (item != null)
                 {
@@ -155,7 +154,7 @@ private bool TryGetOrAddInternal(string key, string region, Func<string, string,
                     }
                 }
             }
-            while (tries <= Configuration.MaxRetries);
+            while (++tries < Configuration.MaxRetries);
 
             return false;
         }
@@ -166,7 +165,6 @@ private CacheItem<TCacheValue> GetOrAddInternal(string key, string region, Func<
             var tries = 0;
             do
             {
-                tries++;
                 var item = GetCacheItemInternal(key, region);
                 if (item != null)
                 {
@@ -193,7 +191,7 @@ private CacheItem<TCacheValue> GetOrAddInternal(string key, string region, Func<
                     }
                 }
             }
-            while (tries <= Configuration.MaxRetries);
+            while (++tries < Configuration.MaxRetries);
 
             // should usually never occur, but could if e.g. max retries is 1 and an item gets added between the get and add.
             // pretty unusual, so keep the max tries at least around 50

src/CacheManager.Core/BaseCacheManager.Update.cs

@@ -49,8 +49,6 @@ private TCacheValue AddOrUpdateInternal(CacheItem<TCacheValue> item, Func<TCache
             var tries = 0;
             do
             {
-                tries++;
-
                 if (AddInternal(item))
                 {
                     if (_logTrace)
@@ -94,7 +92,7 @@ private TCacheValue AddOrUpdateInternal(CacheItem<TCacheValue> item, Func<TCache
                         Configuration.MaxRetries);
                 }
             }
-            while (tries <= maxRetries);
+            while (++tries < maxRetries);
 
             // exceeded max retries, failing the operation... (should not happen in 99,99% of the cases though, better throw?)
             throw new InvalidOperationException(

src/CacheManager.StackExchange.Redis/RedisCacheHandle.cs

@@ -340,7 +340,7 @@ public override UpdateItemResult<TCacheValue> Update(string key, string region,
 
                     Logger.LogDebug("Update of {0} {1} failed with version conflict, retrying {2}/{3}", key, region, tries, maxRetries);
                 }
-                while (tries <= maxRetries);
+                while (tries < maxRetries);
 
                 return UpdateItemResult.ForTooManyRetries<TCacheValue>(tries);
             });