Deploying Extension from different environment

Summary:

We have 2 development environments (dev1 and dev2), 1 test and 1 prod.

We have VBS Sales redwood change in dev1, and we also have VBS SCM redwood change in dev2

our test environment is only 1, is there any issue/impact if the changes in both dev environments will be deployed in one test environment?

will both changes from different dev environments will reflect in test?

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