$ git clone -n https://gitee.com/src-anolis-os/libgexiv2.git /var/lib/mock/dist-an23-build-446391-73337/root/chroot_tmpdir/scmroot/libgexiv2
Cloning into '/var/lib/mock/dist-an23-build-446391-73337/root/chroot_tmpdir/scmroot/libgexiv2'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/libgexiv2
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 297f3c1 Rebuild with exiv2 0.28.2 for riscv