A software development team is working on a collaborative project that involves multiple programmers accessing shared resources in a version control system. The team utilizes a centralized version control repository hosted on a server to manage source code files, branches, and project documentation. Each programmer has access to the repository and can perform operations such as checkout, commit, and merge.

Consider the following scenario:

Programmer A checks out a source code file from the repository for modification. Meanwhile, Programmer B also attempts to check out the same file for making changes. However, Programmer B cannot proceed with the checkout operation because Programmer A currently holds an exclusive lock on the file.

In response to being unable to check out the file, Programmer B decides to switch to another task temporarily and begins working on a different file in the repository. However, while working on the new file, Programmer B realizes that some changes need to be made to the original file checked out by Programmer A$.$

Programmer B decides to request a lock on the original file to prevent conflicts with Programmer A$\text{'}$s changes. However, before Programmer B can obtain the lock, Programmer A completes their modifications to the file and attempts to commit the changes to the repository.

Now, here's the question:

Based on the scenario described, what is the likely outcome regarding the file locking situation, and what potential problem could arise? What is the potential solution to the problem