[stable-3.6] OCFileListFragment: Only scroll to top if directory changed

[backportbot-nextcloud]

backport of #4058

[AndyScherzinger]

pinging @tobiasKaminsky since I thought 3.6.2 stable is sheduled for today to no changes for the release at this point. I am fine either way

[Unpublished]

Sorry for disturbing the flow 😅
Was too eager to try out the backport command, I'm fine if this only makes it in a 3.6.3 or 3.7.0.

[nextcloud-android-bot]

Lint

Type	stable-3.6	PR
Warnings	68	68
Errors	0	0

FindBugs (new)

Warning Type	Number
Bad practice Warnings	32
Correctness Warnings	117
Internationalization Warnings	15
Malicious code vulnerability Warnings	5
Multithreaded correctness Warnings	9
Performance Warnings	119
Security Warnings	56
Dodgy code Warnings	121
Total	474

FindBugs (stable-3.6)

Warning Type	Number
Bad practice Warnings	32
Correctness Warnings	117
Internationalization Warnings	15
Malicious code vulnerability Warnings	5
Multithreaded correctness Warnings	9
Performance Warnings	119
Security Warnings	56
Dodgy code Warnings	121
Total	474

[codecov]

Codecov Report

Merging #4062 into stable-3.6 will decrease coverage by 0.1%.
The diff coverage is 100%.

@@               Coverage Diff                @@
##             stable-3.6    #4062      +/-   ##
================================================
- Coverage         14.02%   13.91%   -0.11%     
  Complexity            1        1              
================================================
  Files               325      325              
  Lines             31390    31392       +2     
  Branches           4498     4499       +1     
================================================
- Hits               4401     4367      -34     
- Misses            26246    26286      +40     
+ Partials            743      739       -4

Impacted Files	Coverage Δ	Complexity Δ
...ncloud/android/ui/fragment/OCFileListFragment.java	19.68% <100%> (+0.2%)	0 <0> (ø)	⬇️
...owncloud/android/ui/adapter/DiskLruImageCache.java	31.16% <0%> (-7.8%)	0% <0%> (ø)
...oud/android/operations/RefreshFolderOperation.java	49.12% <0%> (-6.58%)	0% <0%> (ø)
.../third_parties/daveKoeller/AlphanumComparator.java	80.95% <0%> (-1.2%)	0% <0%> (ø)
.../java/com/owncloud/android/utils/MimeTypeUtil.java	78.26% <0%> (-1.16%)	0% <0%> (ø)
...m/owncloud/android/ui/activity/DrawerActivity.java	42.39% <0%> (-1.09%)	0% <0%> (ø)
.../java/com/owncloud/android/utils/DisplayUtils.java	19.4% <0%> (-0.38%)	0% <0%> (ø)
...loud/android/datamodel/FileDataStorageManager.java	34.79% <0%> (-0.33%)	0% <0%> (ø)
...in/java/com/owncloud/android/datamodel/OCFile.java	61.64% <0%> (+0.91%)	0% <0%> (ø)	⬇️

[tobiasKaminsky]

Ah, I hate breaking my own flows, but let us sneak it in.
Waiting for RC2 or 3.6.3 or even 3.7.0 is not the best, as it is a bit of annoying to have it jumping…