Fix: Correct parameter comparison in updatePostDatedChecks validation…

[jaysharmagithub]

Description

This Pull Request corrects a copy-paste logic bug in the updatePostDatedChecks method inside PostDatedChecks.java.

Previously, the condition for checking a change in the check number parameter was comparing the new input value against this.accountNo instead of this.checkNo:
if (command.isChangeInLongParameterNamed("checkNo", this.accountNo))

This error causes unexpected validation behaviors when updating check information. This fix switches the parameter reference to the correct field variable:
if (command.isChangeInLongParameterNamed("checkNo", this.checkNo))

Impact

• Corrects data validation accuracy for updating post-dated checks.
• Prevents potential bugs where a check number matching the account number fails to update.
• No runtime breaking changes or structural updates.

Verifications

• Code compiles cleanly locally using ./gradlew compileJava.