Button styles: MaterialDesignRaisedButton used with MahApps.Metro causes serious memory leak

Bug explanation

I found a problem, maybe a compatibility issue or a design bug, but I think it can be fixed. My WPF program uses MahApps, (<mah:MetroWindow...), in which I use a button control of MaterialDesignInXamlToolkit, the style of this button control is: MaterialDesignRaisedButton. When I run the program, everything seems to be fine, but immediately after I minimize the form, the memory increases at a rate of 1MB/s, and it won't stop, unless I restore this form that was just minimized, after restoring the memory immediately drop and return to normal levels. I know my question is about coming from two different places, (MahApps and MaterialDesignInXamlToolkit), but if I don't use MahApps(mah:MetroWindow), then, the above problem doesn't exist, everything works fine, also I tried several other Different styles of a similar button, only this style is found so far: MaterialDesignRaisedButton has this problem, the condition that triggers this problem is when the form is minimized.

**xaml code：
<mah:MetroWindow x:Class="WpfApp1.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mah="clr-namespace:MahApps.Metro.Controls;assembly=MahApps.Metro" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes" xmlns:local="clr-namespace:WpfApp1" mc:Ignorable="d" WindowStartupLocation="CenterScreen" Title="MainWindow" Height="450" Width="800"> <Grid> <StackPanel> <Grid Width="124"> <Button Margin="2,0" materialDesign:ButtonProgressAssist.IsIndeterminate="True" materialDesign:ButtonProgressAssist.IsIndicatorVisible="True" materialDesign:ButtonProgressAssist.Value="-1" Content="Indeterminate" IsEnabled="{Binding DataContext.ControlsEnabled, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}}" Style="{StaticResource MaterialDesignRaisedButton}" /> </Grid> </StackPanel> </Grid> </mah:MetroWindow>

I have captured two pictures. Figure 1 shows that after running the WPF program and minimizing it, the change of memory transmission at this time can be seen to be increasing

Figure 2 shows the memory changes after I restored the WPF program window that I just minimized. You can see that the memory has dropped rapidly and gradually returned to normal

Version

4.7.1

No repository file or test is named. Start with the supplied WPF XAML reproduction using MahApps.MetroWindow, MaterialDesignRaisedButton, and ButtonProgressAssist, then run it under version 4.7.1 while minimizing and restoring the window to confirm the memory behavior; done means the leak is explained and the reported scenario no longer reproduces.