fix(ui5-input): deselect suggestion items on input (#2285)

Fixes #2256

Author: fifoosid

packages/main/src/Input.js

@@ -605,6 +605,10 @@ class Input extends UI5Element {
 			return this._handleEscape(event);
 		}
 
+		if (this.showSuggestions) {
+			this.Suggestions._deselectItems();
+		}
+
 		this._keyDown = true;
 	}
 

packages/main/src/features/InputSuggestions.js

@@ -301,6 +301,13 @@ class Suggestions {
 		}
 	}
 
+	_deselectItems() {
+		const items = this._getItems();
+		items.forEach(item => {
+			item.selected = false;
+		});
+	}
+
 	_isItemIntoView(item) {
 		const rectItem = item.getDomRef().getBoundingClientRect();
 		const rectInput = this._getComponent().getDomRef().getBoundingClientRect();