Error on Zero Datetime (1980, 0, 0, 0, 0, 0)

Using a binary fdroid-repo. Since the last update of greenify the command fdroid update fails. here is the verbose output of the error

DEBUG: Processing com.oasisfeng.greenify_213.apk
DEBUG: > /opt/android-sdk/build-tools/23.0.2/aapt dump badging repo/com.oasisfeng.greenify_213.apk
DEBUG: > /opt/android-sdk/build-tools/23.0.2/aapt dump xmltree repo/com.oasisfeng.greenify_213.apk AndroidManifest.xml
DEBUG: Getting signature of repo/com.oasisfeng.greenify_213.apk
DEBUG: > /usr/lib/jvm/java-7-openjdk/bin/jarsigner -verify /home/nero/repos/nero_fdroid_repo_test/repo/com.oasisfeng.greenify_213.apk
jar verified.

Warning: 
This jar contains entries whose certificate chain is not validated.
This jar contains signatures that does not include a timestamp. Without a timestamp, users may not be able to validate this jar after the signer certificate's expiration date (2042-11-14) or after any future revocation date.

Re-run with the -verbose and -certs options for more details.
CRITICAL: Unknown exception found!
Traceback (most recent call last):
  File "/usr/bin/fdroid", line 146, in <module>
    main()
  File "/usr/bin/fdroid", line 123, in main
    mod.main()
  File "/usr/lib/python2.7/site-packages/fdroidserver/update.py", line 1207, in main
    apks, cachechanged = scan_apks(apps, apkcache, repodirs[0], knownapks)
  File "/usr/lib/python2.7/site-packages/fdroidserver/update.py", line 571, in scan_apks
    dt_obj = datetime(*manifest.date_time)
ValueError: month must be in 1..12

When inserting a print(manifest.date_time) the resulting output is (1980, 0, 0, 0, 0, 0)

edit: format of fdroid output