Hypothetical Case

gistfile1.txt

# Initial Data does not make sense
# should be either "Harvey Dent" or "Two Face"

id: 1, firstname: "Two Face", lastname: "Dent"

# Assume RR isolation

session1.start
session2.start

session1.firstname = "Two"
session1.lastname = "Face"
session1.save

session2.firstname = "Harvey"
session2.lastname = "Dent"
session2.save

# Outcome if sending "patch" only:
id: 1, firstname: "Two", lastname: "Dent"

# Outcome if sending "put":
id: 1, firstname: "Harvey", lastname: "Dent"