Merge remote-tracking branch 'origin/main' into develop

Author: huGgW

src/main/kotlin/com/wafflestudio/csereal/core/reservation/database/ReservationRepository.kt

@@ -23,5 +23,5 @@ interface ReservationRepository : JpaRepository<ReservationEntity, Long> {
     ): List<ReservationEntity>
 
     fun deleteAllByRecurrenceId(recurrenceId: UUID)
-    fun findByRecurrenceId(recurrenceId: UUID): ReservationEntity?
+    fun findFirstByRecurrenceId(recurrenceId: UUID): ReservationEntity?
 }

src/main/kotlin/com/wafflestudio/csereal/core/reservation/service/ReservationService.kt

@@ -106,7 +106,7 @@ class ReservationServiceImpl(
 
     override fun cancelRecurring(recurrenceId: UUID) {
         val user = userService.getLoginUser()
-        val reservation = reservationRepository.findByRecurrenceId(recurrenceId)
+        val reservation = reservationRepository.findFirstByRecurrenceId(recurrenceId)
             ?: throw CserealException.Csereal404("reservation not found")
         if (!isCurrentUserStaff() && user.id != reservation.user.id) {
             throw CserealException.Csereal403("Cannot cancel other's reservation")