.command-box {
    position: absolute;
    background-color: #fff;
    width: 100%;
    border: $border-gray;
    bottom: 38px;
    overflow: auto;
    @extend %popover-box-shadow;
    .sidebar--right & {
        bottom: 100px;
    }
}

.command-name {
    position: relative;
    width: 100%;
    line-height: 24px;
    padding: 5px 10px 8px;
    z-index: 101;
    font-size: 0.95em;
    border-bottom: 1px solid #ddd;
    &:hover {
        background-color: #e8eaed;
    }
    .command__desc {
        margin-left: 5px;
        @include opacity(0.5);
        line-height: normal;
    }
}

.command-desc {
    color: #a7a8ab;
}
.command-box {
    position: absolute;
    background-color: #fff;
    width: 100%;
    border: $border-gray;
    bottom: 38px;
    overflow: auto;
    z-index: 100
    @extend %popover-box-shadow;
    .sidebar--right & {
        bottom: 100px;
    }
}

.command-name {
    position: relative;
    width: 100%;
    line-height: 24px;
    padding: 5px 10px 8px;
    z-index: 101;
    font-size: 0.95em;
    border-bottom: 1px solid #ddd;
    &:hover {
        background-color: #e8eaed;
    }
    .command__desc {
        margin-left: 5px;
        @include opacity(0.5);
        line-height: normal;
    }
}

.command-desc {
    color: #a7a8ab;
}
Add z-index to command-box so that elements behind it do not show through autocomplete popup
Add z-index to command-box so that elements behind it do not show through autocomplete popup
