$ git clone -n https://github.com/fedora-riscv/qt6-qtbase.git /var/lib/mock/f38-build-side-42-init-devel-766728-27742/root/chroot_tmpdir/scmroot/qt6-qtbase
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-766728-27742/root/chroot_tmpdir/scmroot/qt6-qtbase'...
$ git fetch origin 67ab3024ab4360dbd6c59ac00b258fc03f81dfaa:KOJI_FETCH_HEAD
From https://github.com/fedora-riscv/qt6-qtbase
 * [new ref]         67ab3024ab4360dbd6c59ac00b258fc03f81dfaa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 67ab302 Fix building on riscv64.