Release 3.15.7+ was released at two times with one fix different.
On Jan 22, 2019 with the wrong description "Release 3.15.6+190108".
Then again on Jan 24, 2019 with the correct description Release 3.15.7+190124.
3.15.7 was released on 22. Jan.
3.15.7 with one commit more was released on 24. Jan.
When everybody is comparing installations based on the version string there might is a difference.