After the update Gogs, the backup command stopped working

OS: WinServer 2019
Database: Mssql 2019

Before:

c:\gogs>gogs -v
Gogs version 0.11.43.0330

c:\gogs>c:\Gogs\gogs.exe backup --target "c:/Backup_gogs"
2020/09/15 01:39:57 [ INFO] Backup root directory: C:\Users\ADMINI~1\AppData\Local\Temp\2\gogs-backup-437357031
2020/09/15 01:39:57 [ INFO] Packing backup files to: c:/Backup_gogs/gogs-backup-20200915013957.zip
2020/09/15 01:39:58 [ INFO] Dumping repositories in 'C:/GitData'
2020/09/15 01:43:02 [ INFO] Repositories dumped to: C:\Users\ADMINI~1\AppData\Local\Temp\2\gogs-backup-437357031/repositories.zip
2020/09/15 01:45:53 [ INFO] Backup succeed! Archive is located at: c:/Backup_gogs/gogs-backup-20200915013957.zip

After:

c:\gogs>gogs -v
Gogs version 0.12.1

c:\gogs>c:\Gogs\gogs.exe backup --target "c:/Backup_gogs"
2020/09/15 01:47:00 [ INFO] Backup root directory: C:\Users\ADMINI~1\AppData\Local\Temp\2\gogs-backup-341576395
2020/09/15 01:47:00 [ INFO] Packing backup files to: c:\Backup_gogs\gogs-backup-20200915014700.zip
2020/09/15 01:47:00 [ INFO] Dumping repositories in "C:/GitData"
2020/09/15 01:50:03 [ INFO] Repositories dumped to: C:\Users\ADMINI~1\AppData\Local\Temp\2\gogs-backup-341576395\repositories.zip
2020/09/15 01:50:03 [FATAL] [...s.io/gogs/internal/cmd/backup.go:159 runBackup()] Failed to save backup archive 'c:\Backup_gogs\gogs-backup-20200915014700.zip': open C:\Users\ADMINI~1\AppData\Local\Temp\2/cae/c:\Backup_gogs\gogs-backup-20200915014700.zip/gogs-backup/metadata.ini: The filename, directory name, or volume label syntax is incorrect.

c:\gogs>gogs -v

Thanks for the feedback!

I think this is a bug and filed https://github.com/gogs/gogs/issues/6339.