$ git clone -n https://src.fedoraproject.org/rpms/qt5-qtxmlpatterns.git /var/lib/mock/f41-build-811763-147521/root/chroot_tmpdir/scmroot/qt5-qtxmlpatterns
Cloning into '/var/lib/mock/f41-build-811763-147521/root/chroot_tmpdir/scmroot/qt5-qtxmlpatterns'...
$ git fetch origin 9a2dc4e43940df59d6771d887ef15361a9e37d6a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/qt5-qtxmlpatterns
 * [new ref]         9a2dc4e43940df59d6771d887ef15361a9e37d6a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9a2dc4e 5.15.14