$ git clone -n https://src.fedoraproject.org/rpms/mangohud.git /var/lib/mock/f39-build-1721122-41229/root/chroot_tmpdir/scmroot/mangohud
Cloning into '/var/lib/mock/f39-build-1721122-41229/root/chroot_tmpdir/scmroot/mangohud'...
$ git fetch origin e3a6b95ba376766c8393559dea6fdde2045183e5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mangohud
 * [new ref]         e3a6b95ba376766c8393559dea6fdde2045183e5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e3a6b95 build: Fix description about 'mangoplot'