File input - reset value to null

Hi there, is there any possibility how to programatically set the file input value to NULL? I'm using the following code for RESET button and it works fine:

resetForm(evt) {
                evt.preventDefault();
                /* Reset our form values */
                this.selectedBatchId = null;
                this.getBatchIds();
                this.selectedTestType = null;
                this.getTestTypes();
                this.testCaseFile = null;
                this.performanceFile = null;
                this.fullFilePath = null;
                this.fullPerformanceFilePath = null;
                sessionStorage.clear();
                /* Trick to reset/clear native browser form validation state */
                this.show = false;
                this.$nextTick(() => {
                    this.show = true
                });
            },

but I want the FILE INPUT value is reset automatically while changing the value for TestType (the file is related to TestType):

getTestCaseTypeValue(value) {
                this.selectedTestType = value;
                this.testCaseFile = null;
                this.fullFilePath = null;
                this.performanceFile = null;
                this.fullPerformanceFilePath = null;
            },

but the above construction doesn't allow the user to select some TestType -> Specify File -> Switch TestType (the file is NULL) -> Switch TestType back to one selected in first step -> Specify the same file as in the second step.