[...]

Or undo this operation with:
  git switch -
Turn off this advice by setting config variable advice.detachedHead to false
HEAD is now at 4d732fb - xorgproto note
fatal: HEAD does not point to a branch
Available branches: master
Searching for tag auto/ti/xorg-proto-kbproto-1.0.7-1.1...
Searching for tag auto/ti/xorg-proto-kbproto-1_0_7-1_1...
--2019-10-31 20:18:19--  http://distfiles.pld-linux.org/by-md5/9/4/94afc90c1f7bef4a27fdd59ece39c878/kbproto-1.0.7.tar.bz2
Resolving distfiles.pld-linux.org (distfiles.pld-linux.org)... 193.239.45.41
Connecting to distfiles.pld-linux.org (distfiles.pld-linux.org)|193.239.45.41|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 250178 (244K) [application/x-bzip2]
Saving to: 'kbproto-1.0.7.tar.bz2'
     0K .......... .......... .......... .......... .......... 20%  628K 0s
    50K .......... .......... .......... .......... .......... 40% 1.22M 0s
   100K .......... .......... .......... .......... .......... 61%  362M 0s
   150K .......... .......... .......... .......... .......... 81% 39.3M 0s
   200K .......... .......... .......... .......... ....      100% 1.13M=0.2s
2019-10-31 20:18:19 (1.50 MB/s) - 'kbproto-1.0.7.tar.bz2' saved [250178/250178]
warning: Could not canonicalize hostname: giant
Building target platforms: i686-linux
Wrote: /home/users/builder/rpm/SRPMS/xorg-proto-kbproto-1.0.7-1.1.src.rpm
exit status 0
Tagging with prefix: auto/ti/
HEAD is now at 4d732fb - xorgproto note
fatal: HEAD does not point to a branch
Writing git revision for tag auto/ti/xorg-proto-kbproto-1.0.7-1.1
On detached HEAD. Use -r BRANCHNAME to override
error: Macro %_builddir has empty body
error: Macro %_builddir has empty body
Executing(--clean): env -i TMP=/home/users/builder/tmp HOME=/home/users/builder PATH=/bin:/usr/bin:/usr/sbin:/sbin:/usr/X11R6/bin TMPDIR=/home/users/builder/tmp  /bin/sh -e /home/users/builder/tmp/rpm-tmp.8620
+ umask 022
+ cd /home/users/builder/rpm/BUILD
+ rm -rf kbproto-1.0.7
Begin-TLD-Builder-Info
Build-Time: user:0.77s sys:0.23s real:4.88s (faults io:216 non-io:86386)
Files queued for ftp:
    254873 xorg-proto-kbproto-1.0.7-1.1.src.rpm
       198 xorg-proto-kbproto-1.0.7-1.1.src.rpm.uploadinfo
End-TLD-Builder-Info