"Open for edit" / "Revert" ignores group permissions

[Bu11etmagnet]

Describe the bug
"Open for edit" and "Revert" change only user permissions. They leave group permissions unchanged.

To Reproduce
Steps to reproduce the behavior:

1. ls -l foo shows r--r--r-- foo.py
2. Right-click on foo.py in the project tree and select "P4 > Open for add/edit"
3. ls -l foo shows rw-r--r-- foo.py (contrast this with the result of p4 edit)
4. Right-click on foo.py in the project tree and select "P4 > Revert"
5. ls -l foo shows r--r--r-- foo.py
6. p4 edit foo
7. ls -l foo shows rw-rw-r-- foo.py
8. Right-click on foo.py in the project tree and select "P4 > Revert"
9. ls -l foo shows r--rw-r-- foo.py (no write permission should be set)

Expected behavior
Behavior should be the same as the Perforce client: both user and group permissions should be changed.

Desktop (please complete the following information):

• OS: XUbuntu 18.04.2 LTS
• Plugin version 0.10.8
• IDE and version: PyCharm 2019.2 (Community Edition)
  Build #PC-192.5728.105, built on July 23, 2019
  Runtime version: 11.0.3+12-b304.10 amd64
  VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
  Linux 4.15.0-55-generic
  GC: ParNew, ConcurrentMarkSweep
  Memory: 1981M
  Cores: 8
  Registry:
  Non-Bundled Plugins: PerforceIC

[groboclown]

Thanks for the bug report. It looks like an issue with the underlying Perforce provided integration library. There have been some newer releases of that jar that might contain a fix for this, otherwise I'll need to add another patch to it.