avoid deselecting channel when selecting the selected one

Signed-off-by: Julien Veyssier <[email protected]>

Author: julien-nc

src/components/SendFilesModal.vue

@@ -59,15 +59,16 @@
 					</span>
 				</span>
 				<NcMultiselect
-					v-model="selectedChannel"
+					:value="selectedChannel"
 					:placeholder="t('integration_mattermost', 'Choose a channel')"
 					:options="sortedChannels"
 					:user-select="true"
 					label="display_name"
 					track-by="id"
 					:internal-search="true"
 					class="channel-select"
-					@search-change="query = $event">
+					@search-change="query = $event"
+					@input="onChannelSelected">
 					<template #option="{option}">
 						<NcAvatar
 							:size="34"
@@ -405,6 +406,11 @@ export default {
 			const index = this.files.findIndex((f) => f.id === fileId)
 			this.files.splice(index, 1)
 		},
+		onChannelSelected(selected) {
+			if (selected !== null) {
+				this.selectedChannel = selected
+			}
+		},
 	},
 }
 </script>