Broomhandle Mauser is made standard sidearm of Imperial Germany

What POD are needed and what are the effects of the Imperial German Army taking the C/96 or another member of the Broomhandle Mauser family as its main sidearm over the P08?
I imagine the P08 would be used by the German army in WWI as a subsitute weapon much as the Broomhandle was in OTL.
Other then this what happens to its history?
 
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