Search this tube not works if peeked job has the highest JID

[MartinMikita]

Description

The Search this tube is not working, if the peeked job from the Tube has the highest JID - was the last one added with a higher priority than other jobs.

Steps to reproduce the issue:

1. create a new tube
2. insert 5 same tasks with normal priority, insert 1 same task with higher priority (priority number is lower)
3. search for the common text in all 6 tasks
4. you will see only 1 result, instead of 6 results

The problematic is the code here and here:

You should not start with the JID of the peeked job, but probably you should try to find the lowest JID or start from the 0. Or just peek all ready jobs, without releasing them.

Describe the results you received:
1 result returned for the search

Describe the results you expected:
6 results, of each task in the queue

Output of go version:

beanstalkd 1.10
aurora version 2.1

no go installed on the machine

Environment details (OS, physical, etc.):

Linux Debian 8, virtual machine, but not relevant.