Can not show correct info when choose device filter in Syslog - Alert Log page

[yingbaiibm]

1. Go to Syslog page, add two alert rule, one individual, on threshold type and trigger it
2. Go to Syslog - Alert log page, choose device filter as local hostname, show incorrect info --failed
3. Choose device filter as Threshold logs, show correct info -- pass
4. Choose device filter as All, can show correct info -- pass
5. Choose device filter as Threshold and local hostname, device filter change to selected 1, but show both info --failed

Expect behavior:
Can show correct record when change device filter
Can select multiple device and show correct info

[yingbaiibm]

passed retest