Imported .mts videos date ahead by one month.
Mandatory: Shotwell version the issue was seen with
0.30.10 – “Celle”, Pop!_OS 20.04 LTS, Flatpak install
The expected behavior
Imported .mts files get filed in an Event directory with the correct date.
What was actually happening
Imported .mts files get filed in an Event one month ahead of the correct date.
Steps to reproduce the issue
Perform "Import All" from the context menu of the "Mass Storage Camera (CAM_SD)" which is an SD Card (SDXC 64GB) inserted directly into a laptop (System76 lemu6). The SD card was formatted by and recorded to from a camcorder (Panasonic HDC-SD60 with AVCHD). The import included both .mts movies and .jpg still shots. The .jpg files were correctly filed in an Event having the correct date. Only the .mts files went into a different Event with the wrong date. The date and time on the camcorder were confirmed to be correct. The .mts movies and .jpg still were all taken on the same camcorder on the same day with the same camcorder date and time.