$ git clone -n https://src.fedoraproject.org/rpms/mingw-gsm.git /var/lib/mock/f41-build-1037585-18804/root/chroot_tmpdir/scmroot/mingw-gsm
Cloning into '/var/lib/mock/f41-build-1037585-18804/root/chroot_tmpdir/scmroot/mingw-gsm'...
$ git fetch origin 899594429bde1356d65e7d868fbdae7b8ee0c566:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-gsm
 * [new ref]         899594429bde1356d65e7d868fbdae7b8ee0c566 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8995944 Eliminate use of obsolete %patchN syntax (#2283636)