$ git clone -n https://src.fedoraproject.org/rpms/mingw-glib2.git /var/lib/mock/f41-build-side-1-2821143-33201/root/chroot_tmpdir/scmroot/mingw-glib2
Cloning into '/var/lib/mock/f41-build-side-1-2821143-33201/root/chroot_tmpdir/scmroot/mingw-glib2'...
$ git fetch origin 50409f1526b7d8ae0d19c79be6a326b1035a6c4f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-glib2
 * [new ref]         50409f1526b7d8ae0d19c79be6a326b1035a6c4f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50409f1 Update to 2.81.1