Developer aliases not consolidated - same developer appears multiple times

[bobmatnyc]

Description

When using developer_aliases in the config file, the aliases are not being consolidated into a single developer entry. The same developer appears multiple times in the output with different names/emails.

Expected Behavior

Commits from jangareddy-duetto, janga.reddy-c@duettoresearch.com, etc. should all be consolidated under the canonical name "Janga Vinod Kumar Reddy" with their commits summed.

Actual Behavior

The output shows multiple separate entries:

jangareddy-duetto,13,0,0,229,12,62,26,...
jangareddy-duetto,2,0,0,46,0,2,1,...   # duplicate entry!

Similarly for other developers:

diogocarvalhoduetto,6,0,0,...
Diogo Carvalho,2,0,0,...

Config Used

developer_aliases:
  "Janga Vinod Kumar Reddy":
    - "jangareddy-duetto"
    - "janga.reddy-c@duettoresearch.com"
  "Diogo Carvalho":
    - "diogocarvalhoduetto"
    - "diogo.carvalho@duettoresearch.com"

Impact

• Incorrect developer productivity metrics (commits split across multiple entries)
• Unable to get accurate per-developer statistics
• Reports show wrong developer counts

Environment

• Version: v3.13.13
• Config format: Using developer_aliases (legacy format)