What is the problem?

I cannot override the Mode of the service from Replicated to Global.

Steps to reproduce the problem:

1. Deploy any service
2. In the Service update override try to specify Global mode, for example:

Mode:
  Replicated: null
  Global: {}

The error is: Error: (HTTP code 400) unexpected - must specify only one service mode

The reason for this seems to be the implementation in Utils.ts of the mergeObjects function. The function always merges all keys, and does not allow to delete a key. Therefore, the Replicated mode always stays, and Global is added on top, which causes the issue.

Output of the following command on your server:

uname -a && lsb_release -a && free -h

Linux ip-xxxxxxxx-1018-aws #20-Ubuntu SMP Thu Oct 10 18:14:42 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 24.04.1 LTS
Release:	24.04
Codename:	noble
               total        used        free      shared  buff/cache   available
Mem:           957Mi       676Mi        66Mi       1.3Mi       384Mi       280Mi
Swap:          1.0Gi       383Mi       640Mi