Error: Call to a member function hMset() on bool

Just wanted to note that this patch no longer applies to 1.7.0. I am no longer experiencing a condition that causes the error, so removing the patch, and crossing fingers...

# 4 patch is Failed To Apply on the latest Code .

Checking patch src/Cache/PhpRedis.php...
Checking patch src/Cache/RedisCacheTagsChecksum.php...
error: while searching for:

    // We want to differentiate between PhpRedis and Redis clients.
    if ($this->clientType === 'PhpRedis') {
      $multi = $this->client->multi();
      foreach ($keys as $key) {
        $multi->incr($key);
      }

error: patch failed: src/Cache/RedisCacheTagsChecksum.php:58
error: src/Cache/RedisCacheTagsChecksum.php: patch does not apply
Checking patch src/Lock/PhpRedis.php...
Checking patch src/Queue/ReliablePhpRedis.php...

Updated The Patch as per latest code.

Sadly patch from #8 did not apply for me upgrading to 1.8.0
Attaching the patch for 1.8.0.