I could not confidently identify a case reported as "Ink v. City of Canton" in major reporters within my knowledge cutoff.
Unclear until the correct case is identified. Potential issues include: (1) for City of Canton v. Harris—whether a municipality may be liable under § 1983 for failure to train employees when the failure amounts to deliberate indifference; or (2) for State ex rel. Ink v. City of Canton—issues of municipal powers, referendum/initiative rights, or mandamus standards.
I will supply the controlling rule once the correct case is confirmed. For City of Canton v. Harris, the rule concerns municipal liability under § 1983 based on deliberate indifference in training that is closely related to the alleged constitutional deprivation. For a State ex rel. Ink Ohio case, the rule would depend on the precise mandamus/election-law context.
I will provide the precise holding after you confirm the case. The holdings differ significantly between a § 1983 federal constitutional case and an Ohio municipal-governance/election-law case.
Significance depends on the case. City of Canton v. Harris is foundational in constitutional torts and municipal liability, frequently taught in Constitutional Law/Civil Rights courses. A State ex rel. Ink v. City of Canton decision would be significant for Ohio municipal law, election law, and remedies (mandamus), often covered in state/local government courses.