Does not appear to clamp timestamps in PNG files
*This bug was originally reported by Thorsten Glaser (tg@mirbsd.de) in Debian bug [#931039](https://bugs.debian.org/931039):*
```
While comparing builds of musescore -6 and -7 I found unexpected
changes in the PNG files that are installed, they change the tIME
chunk to, apparently, the changelog time:
--- home/tg/Misc/Vendor/musescore/share/wallpaper/paper1.sng
+++ paper1.sng
@@ -6,13 +6,13 @@ IHDR {
bKGD {red: 255; green: 255; blue: 255;}
pHYs {xpixels: 3779; ypixels: 3779; per: meter;} # (96 dpi)
tIME {
- # 10 Nov 2001 20:43:56 GMT
- year: 2001
- month: 11
- day: 10
- hour: 20
- minute: 43
- second: 56
+ # 24 Jun 2019 16:07:46 GMT
+ year: 2019
+ month: 6
+ day: 24
+ hour: 16
+ minute: 7
+ second: 46
}
IMAGE {
pixels hex
```
issue