cubicweb #16527954 crash in http_headers when IfModifiedSince is empty [validation pending]

"IndexError: list index out of range" raise at line 166 in cubicweb/web/http_headers::parseDateTime when dateString is an empty string and parts is an empty list.

prioritynormal
typebug
done in3.24.4
load0.100
load left0.000
closed by#0cb36982db94 [web/http_headers] do not crash when IfModifiedSince is empty string (closes #16527954)
patch[web/http_headers] do not crash when IfModifiedSince is empty string (closes #16527954) [applied]