Handling of capitalization breaks if a file in a directory beginning with 'A' is renamed

[ohumbel]

My situation is as follows:

huo@BISONWS1256:~/stuff/temp/rtc2gitMigration/Architecture$ git status
On branch BP_Architektur_Stream
Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

    modified:   Architekturdokumentation/build.gradle
    renamed:    Architekturdokumentation/src/main/asciidoc/arc42-template.adoc -> Architekturdokumentation/src/main/asciidoc/BisonProcessArchitekturModernisiert.adoc

huo@BISONWS1256:~/stuff/temp/rtc2gitMigration/Architecture$ git status --porcelain
M  Architekturdokumentation/build.gradle
R  Architekturdokumentation/src/main/asciidoc/arc42-template.adoc -> Architekturdokumentation/src/main/asciidoc/BisonProcessArchitekturModernisiert.adoc

huo@BISONWS1256:~/stuff/temp/rtc2gitMigration/Architecture$ git status -z
M  Architekturdokumentation/build.gradle^@R  Architekturdokumentation/src/main/asciidoc/BisonProcessArchitekturModernisiert.adoc^@Architekturdokumentation/src/main/asciidoc/arc42-template.adoc^@huo@BISONWS1256:~/stuff/temp/rtc2gitMigration/Architecture$

Here the ^@ denotes the zero delimiter.
Note that after the 2nd one there is a capital A which is part of the filename.

This leads to the following traceback:

Traceback (most recent call last):
  File "migration.py", line 86, in <module>
    migrate()
  File "migration.py", line 68, in migrate
    rtc.acceptchangesintoworkspace(rtc.getchangeentriestoaccept(changeentries, history))
  File "/home/huo/gitrepos/rtcTo/rtc2git/rtcFunctions.py", line 213, in acceptchangesintoworkspace
    Commiter.addandcommit(changeEntry)
  File "/home/huo/gitrepos/rtcTo/rtc2git/gitFunctions.py", line 52, in addandcommit
    Commiter.handle_captitalization_filename_changes()
  File "/home/huo/gitrepos/rtcTo/rtc2git/gitFunctions.py", line 74, in handle_captitalization_filename_changes
    os.chdir(directoryofnewfile)
FileNotFoundError: [Errno 2] No such file or directory: '/home/huo/stuff/temp/rtc2gitMigration/Architecture/hitekturdokumentation/src/main/asciidoc'
huo@BISONWS1256:~/gitrepos/rtcTo/rtc2git$